{"id":16419,"date":"2024-01-24T19:34:21","date_gmt":"2024-01-24T16:04:21","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/"},"modified":"2024-01-24T19:34:21","modified_gmt":"2024-01-24T16:04:21","slug":"%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/","title":{"rendered":"\u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u067e\u0627\u06cc\u062a\u0648\u0646"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0633\u0631\u0641\u0635\u0644\u0647\u0627\u06cc \u0645\u0637\u0644\u0628<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d9%85%d8%b9%d8%b1%d9%81%db%8c\" >\u0645\u0639\u0631\u0641\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d9%85%d8%b4%da%a9%d9%84_%d8%af%d8%b1_%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af\" >\u0645\u0634\u06a9\u0644 \u062f\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%da%86%d8%b1%d8%a7_%d9%88_%da%86%d9%87_%d8%b2%d9%85%d8%a7%d9%86%db%8c_%d8%a8%d9%87%db%8c%d9%86%d9%87_%d8%b3%d8%a7%d8%b2%db%8c_%da%a9%d9%86%db%8c%d9%85\" >\u0686\u0631\u0627 \u0648 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d9%be%d8%b1%d9%88%d9%81%d8%a7%db%8c%d9%84_%da%a9%d8%b1%d8%af%d9%86\" >\u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u06a9\u0631\u062f\u0646<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d8%a7%d9%86%d8%aa%d8%ae%d8%a7%d8%a8_%d8%b3%d8%a7%d8%ae%d8%aa%d8%a7%d8%b1%d9%87%d8%a7%db%8c_%d8%af%d8%a7%d8%af%d9%87_%d9%88_%d8%ac%d8%b1%db%8c%d8%a7%d9%86_%da%a9%d9%86%d8%aa%d8%b1%d9%84\" >\u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0648 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0646\u062a\u0631\u0644<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d8%a8%d8%b1%d8%a7%db%8c_loop_vs_list_comprehensions\" >\u0628\u0631\u0627\u06cc Loop vs List Comprehensions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d9%84%db%8c%d8%b3%d8%aa_%d9%87%d8%a7%db%8c_%d9%be%db%8c%d9%88%d9%86%d8%af%db%8c\" >\u0644\u06cc\u0633\u062a \u0647\u0627\u06cc \u067e\u06cc\u0648\u0646\u062f\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#range_%d8%af%d8%b1_%d9%85%d9%82%d8%a7%d8%a8%d9%84_xrange\" >Range \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 XRange<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d9%85%d8%ac%d9%85%d9%88%d8%b9%d9%87_%d9%87%d8%a7\" >\u0645\u062c\u0645\u0648\u0639\u0647 \u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d8%a7%d9%84%d8%ad%d8%a7%d9%82_%d8%b1%d8%b4%d8%aa%d9%87\" >\u0627\u0644\u062d\u0627\u0642 \u0631\u0634\u062a\u0647<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%a8%d9%87%db%8c%d9%86%d9%87-%d8%b3%d8%a7%d8%b2%db%8c-%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af-%d9%be%d8%a7%db%8c%d8%aa%d9%88%d9%86\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 12<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div><noscript><\/noscript><\/p>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0645\u0646\u0627\u0628\u0639 \u0647\u0631\u06af\u0632 \u0628\u0631\u0627\u06cc \u0628\u0631\u0622\u0648\u0631\u062f\u0646 \u0646\u06cc\u0627\u0632\u0647\u0627\u06cc \u0631\u0648 \u0628\u0647 \u0631\u0634\u062f \u062f\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0635\u0646\u0627\u06cc\u0639\u060c \u0648 \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u0628\u0647 \u0648\u06cc\u0698\u0647 \u062f\u0631 \u0641\u0646\u0627\u0648\u0631\u06cc \u06a9\u0647 \u0631\u0627\u0647 \u062e\u0648\u062f \u0631\u0627 \u0639\u0645\u06cc\u0642 \u062a\u0631 \u0628\u0647 \u0632\u0646\u062f\u06af\u06cc \u0645\u0627 \u0645\u06cc \u06a9\u0646\u062f\u060c \u06a9\u0627\u0641\u06cc \u0646\u06cc\u0633\u062a.  \u0641\u0646\u0627\u0648\u0631\u06cc \u0632\u0646\u062f\u06af\u06cc \u0631\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u0648 \u0631\u0627\u062d\u062a\u200c\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u062a\u06a9\u0627\u0645\u0644 \u06cc\u0627\u0628\u062f \u0648 \u0628\u0647\u062a\u0631 \u0634\u0648\u062f.<\/p>\n<p>\u0627\u06cc\u0646 \u0627\u062a\u06a9\u0627 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0627\u062f \u0631\u0648\u06cc \u0641\u0646\u0627\u0648\u0631\u06cc \u0628\u0647 \u0642\u06cc\u0645\u062a \u0627\u0632 \u062f\u0633\u062a \u062f\u0627\u062f\u0646 \u0645\u0646\u0627\u0628\u0639 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0645\u0648\u062c\u0648\u062f \u062a\u0645\u0627\u0645 \u0634\u062f\u0647 \u0627\u0633\u062a.  \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647\u060c \u0631\u0627\u06cc\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u062a\u0631\u06cc \u062f\u0631 \u062d\u0627\u0644 \u062a\u0648\u0633\u0639\u0647 \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u062f \u0647\u0631\u06af\u0632 \u0645\u0647\u0645\u200c\u062a\u0631 \u0627\u0632 \u0627\u06cc\u0646 \u0646\u0628\u0648\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p>\u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0631\u0646\u0627\u0645\u0647 \u0628\u06cc\u0634 \u0627\u0632 \u0622\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0633\u062e\u062a \u0627\u0641\u0632\u0627\u0631 \u0645\u0627 \u0628\u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u0622\u0646 \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u06a9\u0646\u062f\u060c \u062f\u0631 \u062d\u0627\u0644 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0627\u0633\u062a.  \u0628\u0631\u0627\u06cc \u0645\u0628\u0627\u0631\u0632\u0647 \u0628\u0627 \u0627\u06cc\u0646\u060c \u0645\u0631\u062f\u0645 \u0631\u0627\u0647\u0628\u0631\u062f\u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u0648\u062b\u0631\u062a\u0631 \u0627\u0632 \u0645\u0646\u0627\u0628\u0639 \u0627\u0631\u0627\u0626\u0647 \u06a9\u0631\u062f\u0647 \u0627\u0646\u062f. <em>\u0638\u0631\u0641 \u0633\u0627\u0632\u06cc<\/em>\u060c <em>\u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc (\u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646).<\/em>\u060c \u0648 \u063a\u06cc\u0631\u0647.<\/p>\n<p>\u0627\u06af\u0631\u0686\u0647\u060c \u0627\u0648\u0644\u06cc\u0646 \u0642\u062f\u0645\u06cc \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0628\u0631\u062f\u0627\u0631\u06cc\u0645\u060c \u0648 \u062a\u0627 \u062d\u062f \u0632\u06cc\u0627\u062f\u06cc \u0633\u0627\u062f\u0647\u200c\u062a\u0631\u06cc\u0646 \u0642\u062f\u0645\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u060c \u0627\u06cc\u0646 \u0627\u0633\u062a <em>\u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u062f<\/em>.  \u0645\u0627 \u0628\u0627\u06cc\u062f \u06a9\u062f\u06cc \u0628\u0646\u0648\u06cc\u0633\u06cc\u0645 \u06a9\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0647\u062a\u0631\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u0648 \u0627\u0632 \u0645\u0646\u0627\u0628\u0639 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u06a9\u0645\u062a\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u0627\u0644\u06af\u0648\u0647\u0627 \u0648 \u0631\u0648\u06cc\u0647\u200c\u0647\u0627\u06cc \u0631\u0627\u06cc\u062c \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0646\u0648\u06cc\u0633\u06cc \u067e\u0627\u06cc\u062a\u0648\u0646 \u0631\u0627 \u062f\u0631 \u062a\u0644\u0627\u0634 \u0628\u0631\u0627\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u0639\u0645\u0644\u06a9\u0631\u062f \u0648 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0646\u0627\u0628\u0639 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0645\u0648\u062c\u0648\u062f\u060c \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n<h2 id=\"problemwithperformance\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b4%da%a9%d9%84_%d8%af%d8%b1_%d8%b9%d9%85%d9%84%da%a9%d8%b1%d8%af\"><\/span>\u0645\u0634\u06a9\u0644 \u062f\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0631\u0627\u0647 \u062d\u0644 \u0647\u0627\u06cc \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0633\u06cc\u0627\u0631 \u0645\u0647\u0645 \u062a\u0631 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0645\u0633\u0627\u0626\u0644 \u0628\u0632\u0631\u06af \u062a\u0631 \u0648 \u0642\u0627\u0628\u0644 \u0645\u0634\u0627\u0647\u062f\u0647 \u062a\u0631 \u0645\u06cc \u0634\u0648\u0646\u062f.  \u0648\u0642\u062a\u06cc \u062f\u0631 \u062d\u0627\u0644 \u0646\u0648\u0634\u062a\u0646 \u06a9\u062f \u0647\u0633\u062a\u06cc\u0645 \u0631\u0648\u06cc \u0645\u0627 <code>localhost<\/code>\u060c \u0627\u0632 \u062f\u0633\u062a \u062f\u0627\u062f\u0646 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0634\u06a9\u0644\u0627\u062a \u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0633\u0627\u0646 \u0627\u0633\u062a \u0632\u06cc\u0631\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u06cc\u062f \u0646\u06cc\u0633\u062a.  \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0647\u0645\u0627\u0646 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0631\u0627\u06cc \u0647\u0632\u0627\u0631\u0627\u0646 \u0648 \u0635\u062f\u0647\u0627 \u0647\u0632\u0627\u0631 \u06a9\u0627\u0631\u0628\u0631 \u0646\u0647\u0627\u06cc\u06cc \u0647\u0645\u0632\u0645\u0627\u0646 \u0645\u0633\u062a\u0642\u0631 \u0645\u06cc \u0634\u0648\u062f\u060c \u0645\u0633\u0627\u0626\u0644 \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631 \u0645\u06cc \u0634\u0648\u0646\u062f.<\/p>\n<p>\u06a9\u0646\u062f\u06cc \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u0635\u0644\u06cc\u200c\u062a\u0631\u06cc\u0646 \u0645\u0633\u0627\u0626\u0644\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0645\u0642\u06cc\u0627\u0633\u200c\u0628\u0646\u062f\u06cc \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u0634\u0648\u062f.  \u0627\u06cc\u0646 \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0632\u0645\u0627\u0646 \u067e\u0627\u0633\u062e \u0645\u0634\u062e\u0635 \u0645\u06cc \u0634\u0648\u062f.  \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0633\u0631\u0648\u0631 \u0648\u0628 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u0627\u0631\u0627\u0626\u0647 \u0635\u0641\u062d\u0627\u062a \u0648\u0628 \u0628\u06cc\u0634\u062a\u0631 \u0637\u0648\u0644 \u0628\u06a9\u0634\u062f \u06cc\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0647\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0632\u06cc\u0627\u062f \u0645\u06cc \u0634\u0648\u062f\u060c \u067e\u0627\u0633\u062e \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0645\u0634\u062a\u0631\u06cc\u0627\u0646 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f.  \u0647\u06cc\u0686 \u06a9\u0633 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u06a9\u0646\u062f \u0631\u0627 \u062f\u0648\u0633\u062a \u0646\u062f\u0627\u0631\u062f\u060c \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0641\u0646\u0627\u0648\u0631\u06cc \u0642\u0631\u0627\u0631 \u0627\u0633\u062a \u0628\u0631\u062e\u06cc \u0627\u0632 \u0639\u0645\u0644\u06cc\u0627\u062a \u0647\u0627 \u0631\u0627 \u0633\u0631\u06cc\u0639\u062a\u0631 \u06a9\u0646\u062f\u060c \u0648 \u0627\u06af\u0631 \u0633\u06cc\u0633\u062a\u0645 \u06a9\u0646\u062f \u0628\u0627\u0634\u062f\u060c \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u06cc\u0627\u0628\u062f.<\/p>\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0646\u0627\u0628\u0639 \u0645\u0648\u062c\u0648\u062f \u0628\u0647 \u062e\u0648\u0628\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0646\u0634\u062f\u0647 \u0628\u0627\u0634\u062f\u060c \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0628\u0647 \u0645\u0646\u0627\u0628\u0639 \u0628\u06cc\u0634\u062a\u0631\u06cc \u0628\u0631\u0627\u06cc \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u0631\u0648\u0627\u0646 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.  \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0627\u06af\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062d\u0627\u0641\u0638\u0647 \u0628\u0647 \u062e\u0648\u0628\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0646\u0634\u0648\u062f\u060c \u0628\u0631\u0646\u0627\u0645\u0647 \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a \u0628\u0647 \u062d\u0627\u0641\u0638\u0647 \u0628\u06cc\u0634\u062a\u0631\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f\u060c \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u0631\u062a\u0642\u0627\u0621 \u0647\u0632\u06cc\u0646\u0647 \u0647\u0627 \u06cc\u0627 \u062e\u0631\u0627\u0628\u06cc \u0647\u0627\u06cc \u0645\u06a9\u0631\u0631 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0646\u0627\u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0648 \u062e\u0631\u0648\u062c\u06cc \u0627\u0634\u062a\u0628\u0627\u0647 \u06cc\u06a9\u06cc \u062f\u06cc\u06af\u0631 \u0627\u0632 \u0646\u062a\u0627\u06cc\u062c \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0636\u0639\u06cc\u0641 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627 \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0646\u06a9\u0627\u062a \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627 \u0631\u0627 \u0628\u0631\u062c\u0633\u062a\u0647 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<h2 id=\"whyandwhentooptimize\"><span class=\"ez-toc-section\" id=\"%da%86%d8%b1%d8%a7_%d9%88_%da%86%d9%87_%d8%b2%d9%85%d8%a7%d9%86%db%8c_%d8%a8%d9%87%db%8c%d9%86%d9%87_%d8%b3%d8%a7%d8%b2%db%8c_%da%a9%d9%86%db%8c%d9%85\"><\/span>\u0686\u0631\u0627 \u0648 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0646\u06af\u0627\u0645 \u0633\u0627\u062e\u062a \u0648 \u0633\u0627\u0632 \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af\u060c \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06cc\u06a9\u06cc \u0627\u0632 \u062c\u0646\u0628\u0647 \u0647\u0627\u06cc \u0645\u0647\u0645 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f.  \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0647\u06cc\u0646\u0647 \u0634\u062f\u0647 \u0642\u0627\u062f\u0631 \u0627\u0633\u062a \u062a\u0639\u062f\u0627\u062f \u0632\u06cc\u0627\u062f\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u06cc\u0627 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0647\u0627\u06cc \u0647\u0645\u0632\u0645\u0627\u0646 \u0631\u0627 \u0631\u0633\u06cc\u062f\u06af\u06cc \u06a9\u0646\u062f \u0648 \u062f\u0631 \u0639\u06cc\u0646 \u062d\u0627\u0644 \u0633\u0637\u062d \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u0627\u0632 \u0646\u0638\u0631 \u0633\u0631\u0639\u062a \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u062d\u0641\u0638 \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u06cc\u0646 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0631\u0636\u0627\u06cc\u062a \u06a9\u0644\u06cc \u0645\u0634\u062a\u0631\u06cc \u0645\u06cc \u0634\u0648\u062f \u0632\u06cc\u0631\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0628\u06cc \u062a\u0627\u062b\u06cc\u0631 \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0633\u0631\u062f\u0631\u062f \u06a9\u0645\u062a\u0631\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u062f\u0631 \u0646\u06cc\u0645\u0647\u200c\u0634\u0628 \u0627\u0632 \u06a9\u0627\u0631 \u0628\u06cc\u0641\u062a\u062f \u0648 \u0645\u062f\u06cc\u0631 \u0639\u0635\u0628\u0627\u0646\u06cc \u0634\u0645\u0627 \u0628\u0627 \u0634\u0645\u0627 \u062a\u0645\u0627\u0633 \u0628\u06af\u06cc\u0631\u062f \u062a\u0627 \u0641\u0648\u0631\u0627\u064b \u0622\u0646 \u0631\u0627 \u0628\u0631\u0637\u0631\u0641 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0645\u0646\u0627\u0628\u0639 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u06af\u0631\u0627\u0646 \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u06a9\u0627\u0647\u0634 \u0647\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0627\u0632 \u0646\u0638\u0631 \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc\u060c \u062d\u0627\u0641\u0638\u0647 \u06cc\u0627 \u0642\u062f\u0631\u062a \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f.<\/p>\n<blockquote>\n<p>\u0627\u0645\u0627 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645\u061f<\/p>\n<\/blockquote>\n<p>\u062a\u0648\u062c\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0646\u06a9\u062a\u0647 \u0645\u0647\u0645 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0627 \u067e\u06cc\u0686\u06cc\u062f\u0647\u200c\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0628\u0631 \u062e\u0648\u0627\u0646\u0627\u06cc\u06cc \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u062a\u0623\u062b\u06cc\u0631 \u0645\u0646\u0641\u06cc \u0628\u06af\u0630\u0627\u0631\u062f.  \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0628\u062f\u0647\u06cc \u0641\u0646\u06cc \u06a9\u0647 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u0647\u0645 \u0627\u0633\u062a.<\/p>\n<p>\u0627\u06af\u0631 \u0645\u0627 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0627\u062e\u062a\u0646 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af\u06cc \u0647\u0633\u062a\u06cc\u0645 \u06a9\u0647 \u0627\u0646\u062a\u0638\u0627\u0631 \u062a\u0639\u0627\u0645\u0644 \u0632\u06cc\u0627\u062f \u062a\u0648\u0633\u0637 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0646\u0647\u0627\u06cc\u06cc \u0631\u0627 \u062f\u0627\u0631\u0646\u062f\u060c \u067e\u0633 \u0645\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u0645 \u06a9\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0645\u0627 \u062f\u0631 \u0628\u0647\u062a\u0631\u06cc\u0646 \u062d\u0627\u0644\u062a \u06a9\u0627\u0631 \u06a9\u0646\u062f \u0648 \u0627\u06cc\u0646 \u0645\u0633\u062a\u0644\u0632\u0645 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u0627\u0633\u062a.  \u0647\u0645\u0686\u0646\u06cc\u0646\u060c \u0627\u06af\u0631 \u0645\u0646\u0627\u0628\u0639 \u0645\u062d\u062f\u0648\u062f\u06cc \u0627\u0632 \u0646\u0638\u0631 \u0642\u062f\u0631\u062a \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u06cc\u0627 \u062d\u0627\u0641\u0638\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645\u060c \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u0645\u06a9 \u0632\u06cc\u0627\u062f\u06cc \u0628\u0647 \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0628\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0627 \u0645\u0646\u0627\u0628\u0639\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u062e\u062a\u06cc\u0627\u0631 \u062f\u0627\u0631\u06cc\u0645 \u0627\u06a9\u062a\u0641\u0627 \u06a9\u0646\u06cc\u0645.<\/p>\n<h2 id=\"profiling\"><span class=\"ez-toc-section\" id=\"%d9%be%d8%b1%d9%88%d9%81%d8%a7%db%8c%d9%84_%da%a9%d8%b1%d8%af%d9%86\"><\/span>\u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u06a9\u0631\u062f\u0646<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0642\u0628\u0644 \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u062a\u0648\u0627\u0646\u06cc\u0645 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0647\u06cc\u0646\u0647 \u06a9\u0646\u06cc\u0645\u060c \u0628\u0627\u06cc\u062f \u06a9\u0627\u0631 \u06a9\u0646\u062f.  \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u06af\u0648\u06cc\u06cc\u0645 \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0645\u0646\u0627\u0628\u0639 \u0631\u0627 \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f.  \u0648 \u0627\u06cc\u0646 \u0645\u0627 \u0631\u0627 \u0628\u0647 \u0627\u0648\u0644\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u0631\u0633\u0627\u0646\u062f &#8211; <strong>\u0646\u06a9\u0646<\/strong>.<\/p>\n<p>\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0648\u0646\u0627\u0644\u062f \u06a9\u0646\u0648\u062a &#8211; \u0631\u06cc\u0627\u0636\u06cc\u062f\u0627\u0646\u060c \u062f\u0627\u0646\u0634\u0645\u0646\u062f \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631 \u0648 \u0627\u0633\u062a\u0627\u062f \u062f\u0627\u0646\u0634\u06af\u0627\u0647 \u0627\u0633\u062a\u0646\u0641\u0648\u0631\u062f \u0645\u06cc \u06af\u0648\u06cc\u062f:<\/p>\n<blockquote>\n<p>&#8220;\u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0632\u0648\u062f\u0631\u0633 \u0627\u06cc\u0646 \u0627\u0633\u062a root \u0627\u0632 \u0647\u0645\u0647 \u0628\u062f\u06cc \u0647\u0627.&#8221;<\/p>\n<\/blockquote>\n<p>\u0631\u0627\u0647 \u062d\u0644 \u0628\u0627\u06cc\u062f \u06a9\u0627\u0631 \u06a9\u0646\u062f \u062a\u0627 \u0628\u0647\u06cc\u0646\u0647 \u0634\u0648\u062f.<\/p>\n<p>\u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u0633\u062a\u0644\u0632\u0645 \u0628\u0631\u0631\u0633\u06cc \u062f\u0642\u06cc\u0642 \u06a9\u062f \u0645\u0627 \u0648 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0646 \u0628\u0647 \u0645\u0646\u0638\u0648\u0631 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0631\u0648\u0634 \u0639\u0645\u0644\u06a9\u0631\u062f \u06a9\u062f \u0645\u0627 \u062f\u0631 \u0645\u0648\u0642\u0639\u06cc\u062a \u0647\u0627 \u0648 \u0632\u0645\u06cc\u0646\u0647 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a.  \u0627\u06cc\u0646 \u0645\u0627 \u0631\u0627 \u0642\u0627\u062f\u0631 \u0645\u06cc \u0633\u0627\u0632\u062f \u062a\u0627 \u0645\u062f\u062a \u0632\u0645\u0627\u0646\u06cc \u0631\u0627 \u06a9\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u0627 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f \u06cc\u0627 \u0645\u0642\u062f\u0627\u0631 \u062d\u0627\u0641\u0638\u0647 \u0627\u06cc \u06a9\u0647 \u062f\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0646\u06cc\u0645.  \u0627\u06cc\u0646 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062f\u0631 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u062d\u06cc\u0627\u062a\u06cc \u0627\u0633\u062a process \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u0647 \u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0635\u0645\u06cc\u0645 \u0628\u06af\u06cc\u0631\u06cc\u0645 \u06a9\u0647 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0647\u06cc\u0646\u0647 \u06a9\u0646\u06cc\u0645 \u06cc\u0627 \u0646\u0647.<\/p>\n<p>\u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06cc\u06a9 \u06a9\u0627\u0631 \u0686\u0627\u0644\u0634 \u0628\u0631\u0627\u0646\u06af\u06cc\u0632 \u0628\u0627\u0634\u062f \u0648 \u0632\u0645\u0627\u0646 \u0632\u06cc\u0627\u062f\u06cc \u0631\u0627 \u0635\u0631\u0641 \u06a9\u0646\u062f \u0648 \u0627\u06af\u0631 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u062e\u06cc \u0627\u0632 \u0645\u0633\u0627\u0626\u0644\u06cc \u06a9\u0647 \u0628\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc \u06af\u0630\u0627\u0631\u0646\u062f \u0646\u0627\u062f\u06cc\u062f\u0647 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u0646\u062f.  \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0646\u0638\u0648\u0631\u060c \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0647 \u06a9\u062f\u0646\u0648\u06cc\u0633\u06cc \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0633\u0631\u06cc\u0639\u062a\u0631 \u0648 \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u06a9\u0645\u06a9 \u06a9\u0646\u0646\u062f \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/p>\n<ul>\n<li><a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/pycallgraph.slowchop.com\/en\/master\/\">PyCallGraph<\/a> &#8211; \u06a9\u0647 \u062a\u062c\u0633\u0645 \u06af\u0631\u0627\u0641 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0631\u0648\u0627\u0628\u0637 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0628\u06cc\u0646 \u0632\u06cc\u0631 \u0631\u0648\u0627\u0644 \u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f.<\/li>\n<li><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/docs.python.org\/2\/library\/profile.html#module-cProfile\">cProfile<\/a> &#8211; \u06a9\u0647 \u062a\u0648\u0636\u06cc\u062d \u0645\u06cc \u062f\u0647\u062f \u0686\u0646\u062f \u0648\u0642\u062a \u06cc\u06a9\u0628\u0627\u0631 \u0648 \u0686\u0647 \u0645\u062f\u062a \u0642\u0633\u0645\u062a \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0627\u062c\u0631\u0627 \u0645\u06cc \u0634\u0648\u062f.<\/li>\n<li><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/github.com\/jrfonseca\/gprof2dot\">gProf2dot<\/a> &#8211; \u06a9\u0647 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062e\u0631\u0648\u062c\u06cc \u067e\u0631\u0648\u0641\u0627\u06cc\u0644\u0631\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0646\u0645\u0648\u062f\u0627\u0631 \u0646\u0642\u0637\u0647 \u0627\u06cc \u062a\u062c\u0633\u0645 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<\/ul>\n<p>\u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0628\u0647 \u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0645\u0646\u0627\u0637\u0642\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u062f\u0631 \u06a9\u062f \u062e\u0648\u062f \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0646\u06cc\u0645.  \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646\u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u06cc\u0627 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0646\u062a\u0631\u0644 \u0645\u0646\u0627\u0633\u0628 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0647\u062a\u0631 \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u06a9\u0645\u06a9 \u06a9\u0646\u062f\u060c \u0628\u062d\u062b \u06a9\u0646\u06cc\u0645.<\/p>\n<h2 id=\"choosingdatastructuresandcontrolflow\"><span class=\"ez-toc-section\" id=\"%d8%a7%d9%86%d8%aa%d8%ae%d8%a7%d8%a8_%d8%b3%d8%a7%d8%ae%d8%aa%d8%a7%d8%b1%d9%87%d8%a7%db%8c_%d8%af%d8%a7%d8%af%d9%87_%d9%88_%d8%ac%d8%b1%db%8c%d8%a7%d9%86_%da%a9%d9%86%d8%aa%d8%b1%d9%84\"><\/span>\u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0648 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0646\u062a\u0631\u0644<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u062f\u0631 \u06a9\u062f \u06cc\u0627 \u0627\u0644\u06af\u0648\u0631\u06cc\u062a\u0645 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0634\u062f\u0647 \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0645\u0627 \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u062f.  \u0627\u06af\u0631 \u0645\u0627 \u0628\u0627 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u062e\u0648\u062f \u0627\u0646\u062a\u062e\u0627\u0628 \u0647\u0627\u06cc \u062f\u0631\u0633\u062a\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645\u060c \u06a9\u062f \u0645\u0627 \u0639\u0645\u0644\u06a9\u0631\u062f \u062e\u0648\u0628\u06cc \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a.<\/p>\n<p>\u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06a9\u0645\u06a9 \u0628\u0632\u0631\u06af\u06cc \u0628\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0628\u0647\u062a\u0631\u06cc\u0646 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0646\u0642\u0627\u0637 \u0645\u062e\u062a\u0644\u0641 \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0628\u0627\u0634\u062f.  \u0622\u06cc\u0627 \u0645\u0627 \u062f\u0631\u062c \u0632\u06cc\u0627\u062f\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u06cc\u0645\u061f  \u0622\u06cc\u0627 \u0645\u0627 \u0645\u0631\u062a\u0628 \u062d\u0630\u0641 \u0645\u06cc \u06a9\u0646\u06cc\u0645\u061f  \u0622\u06cc\u0627 \u0645\u0627 \u062f\u0627\u0626\u0645\u0627\u064b \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0627\u0642\u0644\u0627\u0645 \u0647\u0633\u062a\u06cc\u0645\u061f  \u0686\u0646\u06cc\u0646 \u0633\u0624\u0627\u0644\u0627\u062a\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0645\u0627 \u06a9\u0645\u06a9 \u06a9\u0646\u062f \u062a\u0627 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u0635\u062d\u06cc\u062d \u0631\u0627 \u0628\u0631\u0627\u06cc \u0646\u06cc\u0627\u0632 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u0645 \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0647 \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0634\u062f\u0647 \u0645\u0646\u062c\u0631 \u0634\u0648\u062f.<\/p>\n<p>\u0632\u0645\u0627\u0646 \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u062a\u0627 \u062d\u062f \u0632\u06cc\u0627\u062f\u06cc \u062a\u062d\u062a \u062a\u0623\u062b\u06cc\u0631 \u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u0645\u0627 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0646\u06a9\u062a\u0647 \u0645\u0647\u0645 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u062e\u06cc \u0627\u0632 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u062f\u0631 \u0632\u0628\u0627\u0646 \u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0645\u062e\u062a\u0644\u0641 \u0628\u0647 \u0637\u0648\u0631 \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u0634\u0648\u0646\u062f.<\/p>\n<h3 id=\"forloopvslistcomprehensions\"><span class=\"ez-toc-section\" id=\"%d8%a8%d8%b1%d8%a7%db%8c_loop_vs_list_comprehensions\"><\/span>\u0628\u0631\u0627\u06cc Loop vs List Comprehensions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062d\u0644\u0642\u0647 \u0647\u0627 \u0647\u0646\u06af\u0627\u0645 \u062a\u0648\u0633\u0639\u0647 \u062f\u0631 \u067e\u0627\u06cc\u062a\u0648\u0646 \u0631\u0627\u06cc\u062c \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0647 \u0632\u0648\u062f\u06cc \u0628\u0627 \u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a \u0645\u0648\u0627\u062c\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f \u06a9\u0647 \u0631\u0627\u0647\u06cc \u0645\u062e\u062a\u0635\u0631 \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0644\u06cc\u0633\u062a \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u0634\u0631\u0627\u06cc\u0637 \u0631\u0627 \u0646\u06cc\u0632 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0627\u06af\u0631 \u0628\u062e\u0648\u0627\u0647\u06cc\u0645 \u0641\u0647\u0631\u0633\u062a\u06cc \u0627\u0632 \u0645\u062c\u0630\u0648\u0631\u0627\u062a \u062a\u0645\u0627\u0645 \u0627\u0639\u062f\u0627\u062f \u0632\u0648\u062c \u062f\u0631 \u06cc\u06a9 \u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u0639\u06cc\u0646 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0639\u062f\u062f \u0628\u062f\u0633\u062a \u0622\u0648\u0631\u06cc\u0645 <code>for loop<\/code>:<\/p>\n<pre><code class=\"hljs\">new_list = ()\n<span class=\"hljs-keyword\">for<\/span> n <span class=\"hljs-keyword\">in<\/span> <span class=\"hljs-built_in\">range<\/span>(<span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">10<\/span>):\n    <span class=\"hljs-keyword\">if<\/span> n % <span class=\"hljs-number\">2<\/span> == <span class=\"hljs-number\">0<\/span>:\n        new_list.append(n**<span class=\"hljs-number\">2<\/span>)\n<\/code><\/pre>\n<p>\u0622 <code>List Comprehension<\/code> \u0646\u0633\u062e\u0647 \u062d\u0644\u0642\u0647 \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f:<\/p>\n<pre><code class=\"hljs\">new_list = ( n**<span class=\"hljs-number\">2<\/span> <span class=\"hljs-keyword\">for<\/span> n <span class=\"hljs-keyword\">in<\/span> <span class=\"hljs-built_in\">range<\/span>(<span class=\"hljs-number\">0<\/span>,<span class=\"hljs-number\">10<\/span>) <span class=\"hljs-keyword\">if<\/span> n%<span class=\"hljs-number\">2<\/span> == <span class=\"hljs-number\">0<\/span>)\n<\/code><\/pre>\n<p>\u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a \u06a9\u0648\u062a\u0627\u0647 \u062a\u0631 \u0648 \u0645\u062e\u062a\u0635\u0631\u062a\u0631 \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u062a\u0646\u0647\u0627 \u062a\u0631\u0641\u0646\u062f \u062f\u0631 \u0622\u0633\u062a\u06cc\u0646 \u0622\u0646 \u0646\u06cc\u0633\u062a.  \u0622\u0646\u0647\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0633\u0631\u06cc\u0639\u062a\u0631 \u0627\u0632 \u062d\u0644\u0642\u0647 \u0647\u0627 \u0647\u0633\u062a\u0646\u062f.  \u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/docs.python.org\/2\/library\/timeit.html\">\u0632\u0645\u0627\u0646<\/a> \u0645\u0627\u0698\u0648\u0644\u06cc \u06a9\u0647 \u0631\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u0632\u0645\u0627\u0646 \u0628\u0646\u062f\u06cc \u0628\u06cc\u062a \u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a \u0631\u0627 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0645\u0639\u0627\u062f\u0644 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u0645 <code>for<\/code> \u062d\u0644\u0642\u0647 \u0628\u0632\u0646\u06cc\u062f \u0648 \u0628\u0628\u06cc\u0646\u06cc\u062f \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0686\u0642\u062f\u0631 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f \u062a\u0627 \u0628\u0647 \u0646\u062a\u06cc\u062c\u0647 \u06cc\u06a9\u0633\u0627\u0646\u06cc \u0628\u0631\u0633\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">import<\/span> timeit\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">for_square<\/span>(<span class=\"hljs-params\">n<\/span>):<\/span>\n    new_list = ()\n    <span class=\"hljs-keyword\">for<\/span> i <span class=\"hljs-keyword\">in<\/span> <span class=\"hljs-built_in\">range<\/span>(<span class=\"hljs-number\">0<\/span>, n):\n        <span class=\"hljs-keyword\">if<\/span> i % <span class=\"hljs-number\">2<\/span> == <span class=\"hljs-number\">0<\/span>:\n            new_list.append(n**<span class=\"hljs-number\">2<\/span>)\n    <span class=\"hljs-keyword\">return<\/span> new_list\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">list_comp_square<\/span>(<span class=\"hljs-params\">n<\/span>):<\/span>\n    <span class=\"hljs-keyword\">return<\/span> (i**<span class=\"hljs-number\">2<\/span> <span class=\"hljs-keyword\">for<\/span> i <span class=\"hljs-keyword\">in<\/span> <span class=\"hljs-built_in\">range<\/span>(<span class=\"hljs-number\">0<\/span>, n) <span class=\"hljs-keyword\">if<\/span> i % <span class=\"hljs-number\">2<\/span> == <span class=\"hljs-number\">0<\/span>)\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Time taken by For Loop: {}\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'for_square(10)'<\/span>, <span class=\"hljs-string\">'from __main__ import for_square'<\/span>)))\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Time taken by List Comprehension: {}\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'list_comp_square(10)'<\/span>, <span class=\"hljs-string\">'from __main__ import list_comp_square'<\/span>)))\n<\/code><\/pre>\n<p>\u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc 5 \u0628\u0627\u0631 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u067e\u0627\u06cc\u062a\u0648\u0646 2:<\/p>\n<pre><code class=\"hljs\">$ python for-vs-lc.py \nTime taken by For Loop: 2.56907987595\nTime taken by List Comprehension: 2.01556396484\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 2.37083697319\nTime taken by List Comprehension: 1.94110512733\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 2.52163410187\nTime taken by List Comprehension: 1.96427607536\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 2.44279003143\nTime taken by List Comprehension: 2.16282701492\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 2.63641500473\nTime taken by List Comprehension: 1.90950393677\n<\/code><\/pre>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u062a\u0641\u0627\u0648\u062a \u062b\u0627\u0628\u062a \u0646\u06cc\u0633\u062a\u060c \u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a \u0632\u0645\u0627\u0646 \u06a9\u0645\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0632\u0645\u0627\u0646 \u0645\u06cc \u0628\u0631\u062f <code>for<\/code> \u062d\u0644\u0642\u0647  \u062f\u0631 \u06a9\u062f\u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u06a9\u0648\u0686\u06a9\u060c \u0627\u06cc\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0641\u0627\u0648\u062a \u0686\u0646\u062f\u0627\u0646\u06cc \u0627\u06cc\u062c\u0627\u062f \u0646\u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 \u0627\u062c\u0631\u0627\u06cc \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0645\u0627\u0645 \u062a\u0641\u0627\u0648\u062a \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0628\u0631\u0627\u06cc \u0635\u0631\u0641\u0647 \u062c\u0648\u06cc\u06cc \u062f\u0631 \u0632\u0645\u0627\u0646 \u0628\u0627\u0634\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u0645\u062d\u062f\u0648\u062f\u0647 \u0645\u0631\u0628\u0639 \u0647\u0627 \u0631\u0627 \u0627\u0632 10 \u0628\u0647 100 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0647\u06cc\u0645\u060c \u062a\u0641\u0627\u0648\u062a \u0622\u0634\u06a9\u0627\u0631\u062a\u0631 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<pre><code class=\"hljs\">$ python for-vs-lc.py \nTime taken by For Loop: 16.0991549492\nTime taken by List Comprehension: 13.9700510502\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 16.6425571442\nTime taken by List Comprehension: 13.4352738857\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 16.2476081848\nTime taken by List Comprehension: 13.2488780022\n$ \n$ python for-vs-lc.py \nTime taken by For Loop: 15.9152050018\nTime taken by List Comprehension: 13.3579590321\n<\/code><\/pre>\n<p>cProfile \u06cc\u06a9 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644\u0631 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 \u067e\u0627\u06cc\u062a\u0648\u0646 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0627\u06af\u0631 \u0627\u0632 \u0622\u0646 \u0628\u0631\u0627\u06cc \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u06a9\u062f \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/python-performance-optimization-1.png#.png\" alt=\"\u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 cprofile\" title=\"\"><\/p>\n<p>\u067e\u0633 \u0627\u0632 \u0628\u0631\u0631\u0633\u06cc \u0628\u06cc\u0634\u062a\u0631\u060c \u0645\u0627 \u0647\u0646\u0648\u0632 \u0647\u0645 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0628\u06cc\u0646\u06cc\u0645 \u06a9\u0647 <em>cProfile<\/em> \u0627\u0628\u0632\u0627\u0631 \u06af\u0632\u0627\u0631\u0634 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u0645\u0627 <em>\u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a<\/em> \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u06a9\u0645\u062a\u0631 \u0627\u0632 \u0645\u0627 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f <em>\u0628\u0631\u0627\u06cc \u062d\u0644\u0642\u0647<\/em> \u0627\u062c\u0631\u0627\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0627\u06cc\u062c\u0627\u062f \u06a9\u0631\u062f\u0647 \u0628\u0648\u062f\u06cc\u0645.  cProfile \u062a\u0645\u0627\u0645 \u062a\u0648\u0627\u0628\u0639 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0634\u062f\u0647\u060c \u062a\u0639\u062f\u0627\u062f \u062f\u0641\u0639\u0627\u062a \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0622\u0646\u0647\u0627 \u0648 \u0645\u062f\u062a \u0632\u0645\u0627\u0646 \u0635\u0631\u0641 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u0642\u0635\u062f \u0645\u0627 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f\u0645\u0627\u0646 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u062f\u0647\u06cc\u0645\u060c \u067e\u0633 \u0644\u06cc\u0633\u062a Comprehension \u0627\u0646\u062a\u062e\u0627\u0628 \u0628\u0647\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062d\u0644\u0642\u0647 For \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.  \u062a\u0623\u062b\u06cc\u0631 \u0686\u0646\u06cc\u0646 \u062a\u0635\u0645\u06cc\u0645\u06cc \u0628\u0631\u0627\u06cc \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u062f \u0645\u0627 \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af\u200c\u062a\u0631 \u0628\u0633\u06cc\u0627\u0631 \u0648\u0627\u0636\u062d\u200c\u062a\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f \u0648 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u062f \u0686\u0642\u062f\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0645\u0647\u0645 \u0648 \u0622\u0633\u0627\u0646 \u0628\u0627\u0634\u062f.<\/p>\n<p>\u0627\u0645\u0627 \u0627\u06af\u0631 \u0646\u06af\u0631\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u062e\u0648\u062f \u0628\u0627\u0634\u06cc\u0645 \u0686\u0647\u061f  \u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a \u0646\u0633\u0628\u062a \u0628\u0647 \u06cc\u06a9 \u062d\u0644\u0642\u0647 \u0645\u0639\u0645\u0648\u0644\u06cc \u0628\u0647 \u062d\u0627\u0641\u0638\u0647 \u0628\u06cc\u0634\u062a\u0631\u06cc \u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u0645\u0648\u0627\u0631\u062f \u062f\u0631 \u0644\u06cc\u0633\u062a \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.  \u062f\u0631\u06a9 \u0644\u06cc\u0633\u062a \u0647\u0645\u06cc\u0634\u0647 \u067e\u0633 \u0627\u0632 \u062a\u06a9\u0645\u06cc\u0644\u060c \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u062c\u062f\u06cc\u062f \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u0645\u0648\u0627\u0631\u062f \u0627\u0632 \u06cc\u06a9 \u0644\u06cc\u0633\u062a\u060c \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u062c\u062f\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u0634\u0648\u062f.  \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u062d\u0644\u0642\u0647 for \u0645\u0639\u0645\u0648\u0644\u06cc\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 <code>list.remove()<\/code> \u06cc\u0627 <code>list.pop()<\/code> \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0644\u06cc\u0633\u062a \u0627\u0635\u0644\u06cc \u0628\u0647 \u062c\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u0644\u06cc\u0633\u062a \u062c\u062f\u06cc\u062f \u062f\u0631 \u062d\u0627\u0641\u0638\u0647.<\/p>\n<p>\u0628\u0627\u0632 \u0647\u0645\u060c \u062f\u0631 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u200c\u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u06a9\u0648\u0686\u06a9\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0641\u0627\u0648\u062a \u0686\u0646\u062f\u0627\u0646\u06cc \u0646\u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \u0627\u0645\u0627 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af\u200c\u062a\u0631 \u0628\u0647 \u062e\u0648\u0628\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0648 \u062f\u0631 \u0627\u06cc\u0646 \u0634\u0631\u0627\u06cc\u0637\u060c \u0686\u0646\u06cc\u0646 \u0630\u062e\u06cc\u0631\u0647\u200c\u0633\u0627\u0632\u06cc \u062d\u0627\u0641\u0638\u0647 \u0628\u0647 \u062e\u0648\u0628\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0628\u0647 \u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0627\u0636\u0627\u0641\u06cc \u0630\u062e\u06cc\u0631\u0647\u200c\u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u200c\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645.<\/p>\n<h3 id=\"linkedlists\"><span class=\"ez-toc-section\" id=\"%d9%84%db%8c%d8%b3%d8%aa_%d9%87%d8%a7%db%8c_%d9%be%db%8c%d9%88%d9%86%d8%af%db%8c\"><\/span>\u0644\u06cc\u0633\u062a \u0647\u0627\u06cc \u067e\u06cc\u0648\u0646\u062f\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06cc\u06a9\u06cc \u062f\u06cc\u06af\u0631 \u0627\u0632 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0627\u06cc \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06cc\u0627\u0628\u06cc \u0628\u0647 \u0635\u0631\u0641\u0647 \u062c\u0648\u06cc\u06cc \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f\u060c \u0644\u06cc\u0633\u062a \u067e\u06cc\u0648\u0646\u062f\u06cc \u0627\u0633\u062a.  \u062a\u0641\u0627\u0648\u062a \u0622\u0646 \u0628\u0627 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0645\u0639\u0645\u0648\u0644\u06cc \u062f\u0631 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0647\u0631 \u0622\u06cc\u062a\u0645 \u06cc\u0627 node \u062f\u0627\u0631\u0627\u06cc \u067e\u06cc\u0648\u0646\u062f \u06cc\u0627 \u0627\u0634\u0627\u0631\u0647 \u06af\u0631 \u0628\u0647 \u0628\u0639\u062f\u06cc \u0627\u0633\u062a node \u062f\u0631 \u0644\u06cc\u0633\u062a \u0627\u0633\u062a \u0648 \u0628\u0647 \u062a\u062e\u0635\u06cc\u0635 \u062d\u0627\u0641\u0638\u0647 \u067e\u06cc\u0648\u0633\u062a\u0647 \u0646\u06cc\u0627\u0632 \u0646\u062f\u0627\u0631\u062f.<\/p>\n<p>\u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f \u06a9\u0647 \u062d\u0627\u0641\u0638\u0647 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0628\u0631\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0622\u0646 \u0648 \u0622\u06cc\u062a\u0645 \u0647\u0627\u06cc \u0622\u0646 \u0627\u0632 \u0642\u0628\u0644 \u062a\u062e\u0635\u06cc\u0635 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f \u0648 \u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0633\u06cc\u0627\u0631 \u06af\u0631\u0627\u0646 \u06cc\u0627 \u0628\u06cc\u0647\u0648\u062f\u0647 \u0628\u0627\u0634\u062f \u0648\u0642\u062a\u06cc \u06a9\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u0622\u0631\u0627\u06cc\u0647 \u0627\u0632 \u0642\u0628\u0644 \u0645\u0634\u062e\u0635 \u0646\u0628\u0627\u0634\u062f.<\/p>\n<p>\u06cc\u06a9 \u0644\u06cc\u0633\u062a \u067e\u06cc\u0648\u0646\u062f\u06cc \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0631\u0627 \u062a\u062e\u0635\u06cc\u0635 \u062f\u0647\u06cc\u062f.  \u0627\u06cc\u0646 \u0627\u0645\u06a9\u0627\u0646 \u067e\u0630\u06cc\u0631 \u0627\u0633\u062a \u0632\u06cc\u0631\u0627 \u06af\u0631\u0647\u200c\u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u0644\u06cc\u0633\u062a \u067e\u06cc\u0648\u0646\u062f\u06cc \u0631\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u062f\u0631 \u0645\u06a9\u0627\u0646\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u062d\u0627\u0641\u0638\u0647 \u0630\u062e\u06cc\u0631\u0647 \u06a9\u0631\u062f\u060c \u0627\u0645\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u0634\u0627\u0631\u0647\u200c\u06af\u0631\u0647\u0627 \u062f\u0631 \u0644\u06cc\u0633\u062a \u067e\u06cc\u0648\u0646\u062f\u06cc \u06af\u0631\u062f \u0647\u0645 \u0645\u06cc\u200c\u0622\u06cc\u0646\u062f.  \u0627\u06cc\u0646 \u0628\u0627\u0639\u062b \u0645\u06cc \u0634\u0648\u062f \u0644\u06cc\u0633\u062a \u0647\u0627\u06cc \u067e\u06cc\u0648\u0646\u062f\u06cc \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0622\u0631\u0627\u06cc\u0647 \u0647\u0627 \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631\u062a\u0631 \u0628\u0627\u0634\u0646\u062f.<\/p>\n<p>\u0646\u06a9\u062a\u0647 \u0627\u06cc \u06a9\u0647 \u062f\u0631 \u0645\u0648\u0631\u062f \u0644\u06cc\u0633\u062a \u067e\u06cc\u0648\u0646\u062f\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0646 \u0622\u06cc\u062a\u0645 \u0647\u0627 \u062f\u0631 \u062d\u0627\u0641\u0638\u0647\u060c \u0632\u0645\u0627\u0646 \u062c\u0633\u062a\u062c\u0648 \u06a9\u0646\u062f\u062a\u0631 \u0627\u0632 \u0622\u0631\u0627\u06cc\u0647 \u0627\u0633\u062a.  \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0645\u0646\u0627\u0633\u0628 \u0628\u0647 \u0634\u0645\u0627 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0634\u062e\u06cc\u0635 \u062f\u0647\u06cc\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u0628\u0647 \u062d\u0627\u0641\u0638\u0647 \u0628\u0647\u062a\u0631 \u06cc\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0632\u0645\u0627\u0646 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f \u062a\u0627 \u062a\u0635\u0645\u06cc\u0645 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u0627\u0632 \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u067e\u06cc\u0648\u0646\u062f\u06cc \u06cc\u0627 \u06cc\u06a9 \u0622\u0631\u0627\u06cc\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0627\u0646\u062a\u062e\u0627\u0628 \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u0647\u0646\u06af\u0627\u0645 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u062f \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u06cc\u0627 \u062e\u06cc\u0631.<\/p>\n<h3 id=\"rangevsxrange\"><span class=\"ez-toc-section\" id=\"range_%d8%af%d8%b1_%d9%85%d9%82%d8%a7%d8%a8%d9%84_xrange\"><\/span>Range \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 XRange<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0627 \u062d\u0644\u0642\u0647\u200c\u0647\u0627 \u062f\u0631 \u067e\u0627\u06cc\u062a\u0648\u0646 \u0633\u0631 \u0648 \u06a9\u0627\u0631 \u062f\u0627\u0631\u06cc\u0645\u060c \u06af\u0627\u0647\u06cc \u0627\u0648\u0642\u0627\u062a \u0644\u0627\u0632\u0645 \u0627\u0633\u062a \u0641\u0647\u0631\u0633\u062a\u06cc \u0627\u0632 \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 \u062a\u0627 \u0628\u0647 \u0645\u0627 \u062f\u0631 \u0627\u062c\u0631\u0627\u06cc \u062d\u0644\u0642\u0647\u200c\u0647\u0627\u06cc for \u06a9\u0645\u06a9 \u06a9\u0646\u0646\u062f.  \u062a\u0648\u0627\u0628\u0639 <code>range<\/code> \u0648 <code>xrange<\/code> \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0646\u0638\u0648\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f.<\/p>\n<p>\u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0646\u0647\u0627 \u06cc\u06a9\u0633\u0627\u0646 \u0627\u0633\u062a \u0627\u0645\u0627 \u0627\u0632 \u0627\u06cc\u0646 \u0646\u0638\u0631 \u0645\u062a\u0641\u0627\u0648\u062a \u0647\u0633\u062a\u0646\u062f <code>range<\/code> \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f a <code>list<\/code> \u0627\u0639\u062a\u0631\u0627\u0636 \u0627\u0645\u0627 <code>xrange<\/code> \u06cc\u06a9 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f <code>xrange<\/code> \u0647\u062f\u0641 &#8211; \u0634\u06cc.<\/p>\n<p>\u0627\u06cc\u0646 \u06cc\u0639\u0646\u06cc \u0686\u06cc\u061f  \u06cc\u06a9 <code>xrange<\/code> \u0634\u06cc \u06cc\u06a9 \u0645\u0648\u0644\u062f \u0627\u0633\u062a \u06a9\u0647 \u0644\u06cc\u0633\u062a \u0646\u0647\u0627\u06cc\u06cc \u0646\u06cc\u0633\u062a.  \u0627\u06cc\u0646 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0647 \u0645\u0627 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u062a\u06a9\u0646\u06cc\u06a9\u06cc \u0628\u0647 \u0646\u0627\u0645 &#8220;\u0628\u0627\u0632\u062f\u0647&#8221;\u060c \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u0644\u06cc\u0633\u062a \u0646\u0647\u0627\u06cc\u06cc \u0645\u0648\u0631\u062f \u0627\u0646\u062a\u0638\u0627\u0631 \u0631\u0627 \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a \u062a\u0648\u0644\u06cc\u062f \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u0627\u06cc\u0646 \u0648\u0627\u0642\u0639\u06cc\u062a \u06a9\u0647 <code>xrange<\/code> \u062a\u0627\u0628\u0639 \u0644\u06cc\u0633\u062a \u0646\u0647\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0631 \u0646\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f\u060c \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0627\u0631\u0622\u0645\u062f\u062a\u0631 \u062d\u0627\u0641\u0638\u0647 \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0644\u06cc\u0633\u062a \u0647\u0627\u06cc \u0639\u0638\u06cc\u0645\u06cc \u0627\u0632 \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u0628\u0631\u0627\u06cc \u0627\u0647\u062f\u0627\u0641 \u062d\u0644\u0642\u0647 \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0648\u0644\u06cc\u062f \u062a\u0639\u062f\u0627\u062f \u0632\u06cc\u0627\u062f\u06cc \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645\u060c <code>xrange<\/code> \u0627\u0632 \u0622\u0646\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u06a9\u0645\u062a\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0627\u06cc\u062f \u06af\u0632\u06cc\u0646\u0647 \u067e\u06cc\u0634 \u0631\u0648\u06cc \u0645\u0627 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0646\u0638\u0648\u0631 \u0628\u0627\u0634\u062f.  \u0627\u06af\u0631 \u0627\u0632 <code>range<\/code> \u062f\u0631 \u0639\u0648\u0636\u060c \u06a9\u0644 \u0644\u06cc\u0633\u062a \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u0628\u0627\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u0634\u0648\u062f \u0648 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u062d\u0627\u0641\u0638\u0647 \u0641\u0634\u0631\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u0627\u06cc\u0646 \u062a\u0641\u0627\u0648\u062a \u062f\u0631 \u0645\u0635\u0631\u0641 \u062d\u0627\u0641\u0638\u0647 \u0628\u06cc\u0646 \u062f\u0648 \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\">$ python\nPython <span class=\"hljs-number\">2.7<\/span><span class=\"hljs-number\">.10<\/span> (default, Oct <span class=\"hljs-number\">23<\/span> <span class=\"hljs-number\">2015<\/span>, <span class=\"hljs-number\">19<\/span>:<span class=\"hljs-number\">19<\/span>:<span class=\"hljs-number\">21<\/span>) \n(GCC <span class=\"hljs-number\">4.2<\/span><span class=\"hljs-number\">.1<\/span> Compatible Apple LLVM <span class=\"hljs-number\">7.0<\/span><span class=\"hljs-number\">.0<\/span> (clang-<span class=\"hljs-number\">700.0<\/span><span class=\"hljs-number\">.59<\/span><span class=\"hljs-number\">.5<\/span>)) \u0631\u0648\u06cc darwin\n<span class=\"hljs-type\">Type<\/span> <span class=\"hljs-string\">\"help\"<\/span>, <span class=\"hljs-string\">\"copyright\"<\/span>, <span class=\"hljs-string\">\"credits\"<\/span> <span class=\"hljs-keyword\">or<\/span> <span class=\"hljs-string\">\"license\"<\/span> <span class=\"hljs-keyword\">for<\/span> more information.\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span><span class=\"hljs-keyword\">import<\/span> sys\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span>\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span>r = <span class=\"hljs-built_in\">range<\/span>(<span class=\"hljs-number\">1000000<\/span>)\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span>x = xrange(<span class=\"hljs-number\">1000000<\/span>)\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span>\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span><span class=\"hljs-built_in\">print<\/span>(sys.getsizeof(r))\n<span class=\"hljs-number\">8000072<\/span>\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span>\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span><span class=\"hljs-built_in\">print<\/span>(sys.getsizeof(x))\n<span class=\"hljs-number\">40<\/span>\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span>\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span><span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-built_in\">type<\/span>(r))\n&lt;<span class=\"hljs-built_in\">type<\/span> <span class=\"hljs-string\">'list'<\/span>&gt;\n<span class=\"hljs-meta\">&gt;&gt;&gt; <\/span><span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-built_in\">type<\/span>(x))\n&lt;<span class=\"hljs-built_in\">type<\/span> <span class=\"hljs-string\">'xrange'<\/span>&gt;\n<\/code><\/pre>\n<p>\u0645\u0627 \u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u06cc \u0627\u0632 1000000 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>range<\/code> \u0648 <code>xrange<\/code>.  \u0646\u0648\u0639 \u0634\u06cc \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 <code>range<\/code> \u062a\u0627\u0628\u0639 \u06cc\u06a9 \u0627\u0633\u062a <code>List<\/code> \u06a9\u0647 \u0645\u0635\u0631\u0641 \u0645\u06cc \u06a9\u0646\u062f <code>8000072 bytes<\/code> \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 <code>xrange<\/code> \u0634\u06cc \u0641\u0642\u0637 \u0645\u0635\u0631\u0641 \u0645\u06cc \u06a9\u0646\u062f <code>40 bytes<\/code> \u0627\u0632 \u062d\u0627\u0641\u0638\u0647<\/p>\n<p>\u0631\u0627 <code>xrange<\/code> \u0639\u0645\u0644\u06a9\u0631\u062f \u062d\u0627\u0641\u0638\u0647 \u0645\u0627 \u0631\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u0642\u062f\u0627\u0631 \u0632\u06cc\u0627\u062f\u06cc \u0627\u0632 \u0622\u0646\u060c \u0627\u0645\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u0632\u0645\u0627\u0646 \u062c\u0633\u062a\u062c\u0648\u06cc \u0622\u06cc\u062a\u0645 \u0686\u0637\u0648\u0631\u061f  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0632\u0645\u0627\u0646 \u062c\u0633\u062a\u062c\u0648\u06cc \u06cc\u06a9 \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u0631\u0627 \u062f\u0631 \u0644\u06cc\u0633\u062a \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u0627\u0632 \u0627\u0639\u062f\u0627\u062f \u0635\u062d\u06cc\u062d \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Timeit \u0632\u0645\u0627\u0646 \u0628\u0646\u062f\u06cc \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">import<\/span> timeit\n\nr = <span class=\"hljs-built_in\">range<\/span>(<span class=\"hljs-number\">1000000<\/span>)\nx = xrange(<span class=\"hljs-number\">1000000<\/span>)\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">lookup_range<\/span>():<\/span>\n    <span class=\"hljs-keyword\">return<\/span> r(<span class=\"hljs-number\">999999<\/span>)\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">lookup_xrange<\/span>():<\/span>\n    <span class=\"hljs-keyword\">return<\/span> x(<span class=\"hljs-number\">999999<\/span>)\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Look up time in Range: {}\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'lookup_range()'<\/span>, <span class=\"hljs-string\">'from __main__ import lookup_range'<\/span>)))\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Look up time in Xrange: {}\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'lookup_xrange()'<\/span>, <span class=\"hljs-string\">'from __main__ import lookup_xrange'<\/span>)))\n<\/code><\/pre>\n<p>\u0646\u062a\u06cc\u062c\u0647:<\/p>\n<pre><code class=\"hljs\">$ python range-vs-xrange.py \nLook up time <span class=\"hljs-keyword\">in<\/span> Range: 0.0959858894348\nLook up time <span class=\"hljs-keyword\">in<\/span> Xrange: 0.140854114045\n$ \n$ python range-vs-xrange.py \nLook up time <span class=\"hljs-keyword\">in<\/span> Range: 0.111716985703\nLook up time <span class=\"hljs-keyword\">in<\/span> Xrange: 0.130584001541\n$ \n$ python range-vs-xrange.py \nLook up time <span class=\"hljs-keyword\">in<\/span> Range: 0.110965013504\nLook up time <span class=\"hljs-keyword\">in<\/span> Xrange: 0.133008003235\n$ \n$ python range-vs-xrange.py \nLook up time <span class=\"hljs-keyword\">in<\/span> Range: 0.102388143539\nLook up time <span class=\"hljs-keyword\">in<\/span> Xrange: 0.133061170578\n<\/code><\/pre>\n<p><code>xrange<\/code>  \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062d\u0627\u0641\u0638\u0647 \u06a9\u0645\u062a\u0631\u06cc \u0645\u0635\u0631\u0641 \u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u06cc\u0627\u0641\u062a\u0646 \u06cc\u06a9 \u0622\u06cc\u062a\u0645 \u062f\u0631 \u0622\u0646 \u0632\u0645\u0627\u0646 \u0628\u06cc\u0634\u062a\u0631\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.  \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0645\u0648\u0642\u0639\u06cc\u062a \u0648 \u0645\u0646\u0627\u0628\u0639 \u0645\u0648\u062c\u0648\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u062f\u0648 \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u0645 <code>range<\/code> \u06cc\u0627 <code>xrange<\/code> \u0628\u0633\u062a\u0647 \u0628\u0647 \u0631\u0648\u06cc \u062c\u0646\u0628\u0647 \u0627\u06cc \u06a9\u0647 \u0645\u0627 \u062f\u0646\u0628\u0627\u0644\u0634 \u0647\u0633\u062a\u06cc\u0645  \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0627\u0647\u0645\u06cc\u062a \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u062f\u0631 \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u06a9\u062f \u067e\u0627\u06cc\u062a\u0648\u0646 \u0645\u0627 \u0631\u0627 \u062a\u06a9\u0631\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> <code>xrange<\/code>  \u062f\u0631 \u067e\u0627\u06cc\u062a\u0648\u0646 3 \u0645\u0646\u0633\u0648\u062e \u0634\u062f\u0647 \u0627\u0633\u062a <code>range<\/code> \u062a\u0627\u0628\u0639 \u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0647\u0645\u0627\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u062f\u0647\u062f.  \u0698\u0646\u0631\u0627\u062a\u0648\u0631\u0647\u0627 \u0647\u0646\u0648\u0632 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0647\u0633\u062a\u0646\u062f \u0631\u0648\u06cc \u067e\u0627\u06cc\u062a\u0648\u0646 3 \u0648 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0645\u0627 \u062f\u0631 \u0630\u062e\u06cc\u0631\u0647 \u062d\u0627\u0641\u0638\u0647 \u0627\u0632 \u0631\u0627\u0647 \u0647\u0627\u06cc \u062f\u06cc\u06af\u0631\u06cc \u0645\u0627\u0646\u0646\u062f <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.python.org\/dev\/peps\/pep-0289\/\">\u062f\u0631\u06a9 \u06cc\u0627 \u0639\u0628\u0627\u0631\u0627\u062a \u0645\u0648\u0644\u062f<\/a>.<\/p>\n<h3 id=\"sets\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%ac%d9%85%d9%88%d8%b9%d9%87_%d9%87%d8%a7\"><\/span>\u0645\u062c\u0645\u0648\u0639\u0647 \u0647\u0627<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0647\u0646\u06af\u0627\u0645 \u06a9\u0627\u0631 \u0628\u0627 \u0644\u06cc\u0633\u062a \u0647\u0627 \u062f\u0631 \u067e\u0627\u06cc\u062a\u0648\u0646\u060c \u0628\u0627\u06cc\u062f \u0628\u0647 \u062e\u0627\u0637\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645 \u06a9\u0647 \u0622\u0646\u0647\u0627 \u0627\u062c\u0627\u0632\u0647 \u0648\u0631\u0648\u062f\u06cc \u0647\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631\u06cc \u0631\u0627 \u0645\u06cc \u062f\u0647\u0646\u062f.  \u0627\u06af\u0631 \u0645\u0647\u0645 \u0628\u0627\u0634\u062f \u06a9\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0627 \u062f\u0627\u0631\u0627\u06cc \u0645\u0648\u0627\u0631\u062f \u062a\u06a9\u0631\u0627\u0631\u06cc \u0647\u0633\u062a\u0646\u062f \u06cc\u0627 \u062e\u06cc\u0631\u060c \u0686\u0647\u061f<\/p>\n<p>\u0627\u06cc\u0646\u062c\u0627\u0633\u062a \u06a9\u0647 \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0647\u0627\u06cc \u067e\u0627\u06cc\u062a\u0648\u0646 \u0648\u0627\u0631\u062f \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0622\u0646\u0647\u0627 \u0645\u0627\u0646\u0646\u062f \u0644\u06cc\u0633\u062a\u200c\u0647\u0627 \u0647\u0633\u062a\u0646\u062f \u0627\u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0646\u0645\u06cc\u200c\u062f\u0647\u0646\u062f \u0647\u06cc\u0686 \u062a\u06a9\u0631\u0627\u0631\u06cc \u062f\u0631 \u0622\u0646\u0647\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0634\u0648\u062f.  \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0647\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u0645\u0624\u062b\u0631 \u0645\u0648\u0627\u0631\u062f \u062a\u06a9\u0631\u0627\u0631\u06cc \u0627\u0632 \u0641\u0647\u0631\u0633\u062a\u200c\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u0633\u0631\u06cc\u0639\u200c\u062a\u0631 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u062c\u062f\u06cc\u062f \u0648 \u067e\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0627\u0632 \u0641\u0647\u0631\u0633\u062a\u06cc \u0628\u0627 \u0645\u0648\u0627\u0631\u062f \u062a\u06a9\u0631\u0627\u0631\u06cc \u0647\u0633\u062a\u0646\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0639\u0645\u0644\u06cc\u0627\u062a\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0647\u200c\u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0642\u06cc\u0641 \u06cc\u0627 \u0641\u06cc\u0644\u062a\u0631 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u06a9\u0647 \u0645\u0648\u0627\u0631\u062f \u062a\u06a9\u0631\u0627\u0631\u06cc \u0631\u0627 \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u062f \u0648 \u0641\u0642\u0637 \u0628\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u0646\u062d\u0635\u0631\u0628\u0647\u200c\u0641\u0631\u062f \u0627\u062c\u0627\u0632\u0647 \u0639\u0628\u0648\u0631 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/p>\n<p>\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u0627\u06cc\u0646 \u062f\u0648 \u0639\u0645\u0644\u06cc\u0627\u062a \u0631\u0627 \u0628\u0627 \u0647\u0645 \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">import<\/span> timeit\n\n\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">manual_remove_duplicates<\/span>(<span class=\"hljs-params\">list_of_duplicates<\/span>):<\/span>\n    new_list = ()\n    (new_list.append(n) <span class=\"hljs-keyword\">for<\/span> n <span class=\"hljs-keyword\">in<\/span> list_of_duplicates <span class=\"hljs-keyword\">if<\/span> n <span class=\"hljs-keyword\">not<\/span> <span class=\"hljs-keyword\">in<\/span> new_list)\n    <span class=\"hljs-keyword\">return<\/span> new_list\n\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">set_remove_duplicates<\/span>(<span class=\"hljs-params\">list_of_duplicates<\/span>):<\/span>\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-built_in\">list<\/span>(<span class=\"hljs-built_in\">set<\/span>(list_of_duplicates))\n\nlist_of_duplicates = (<span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">54<\/span>, <span class=\"hljs-number\">76<\/span>, <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">54<\/span>, <span class=\"hljs-number\">100<\/span>, <span class=\"hljs-number\">1991<\/span>, <span class=\"hljs-number\">6782<\/span>, <span class=\"hljs-number\">1991<\/span>, <span class=\"hljs-number\">1991<\/span>, <span class=\"hljs-number\">64<\/span>, <span class=\"hljs-number\">10<\/span>)\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Manually removing duplicates takes {}s\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'manual_remove_duplicates(list_of_duplicates)'<\/span>, <span class=\"hljs-string\">'from __main__ import manual_remove_duplicates, list_of_duplicates'<\/span>)))\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Using Set to remove duplicates takes {}s\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'set_remove_duplicates(list_of_duplicates)'<\/span>, <span class=\"hljs-string\">'from __main__ import set_remove_duplicates, list_of_duplicates'<\/span>)))\n<\/code><\/pre>\n<p>\u067e\u0633 \u0627\u0632 \u0627\u062c\u0631\u0627\u06cc \u067e\u0646\u062c \u0628\u0627\u0631 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a:<\/p>\n<pre><code class=\"hljs\">$ python sets-vs-lists.py \nManually removing duplicates takes 2.64614701271s\nUsing Set to remove duplicates takes 2.23225092888s\n$ \n$ python sets-vs-lists.py \nManually removing duplicates takes 2.65356898308s\nUsing Set to remove duplicates takes 1.1165189743s\n$ \n$ python sets-vs-lists.py \nManually removing duplicates takes 2.53129696846s\nUsing Set to remove duplicates takes 1.15646100044s\n$ \n$ python sets-vs-lists.py \nManually removing duplicates takes 2.57102680206s\nUsing Set to remove duplicates takes 1.13189387321s\n$ \n$ python sets-vs-lists.py \nManually removing duplicates takes 2.48338890076s\nUsing Set to remove duplicates takes 1.20611810684s\n<\/code><\/pre>\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u0645\u062c\u0645\u0648\u0639\u0647 \u0628\u0631\u0627\u06cc \u062d\u0630\u0641 \u0645\u0648\u0627\u0631\u062f \u062a\u06a9\u0631\u0627\u0631\u06cc \u0628\u0647 \u0637\u0648\u0631 \u0645\u062f\u0627\u0648\u0645 \u0633\u0631\u06cc\u0639\u062a\u0631 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0641\u0647\u0631\u0633\u062a \u062f\u0633\u062a\u06cc \u0648 \u0627\u0641\u0632\u0648\u062f\u0646 \u0645\u0648\u0627\u0631\u062f \u062f\u0631 \u062d\u06cc\u0646 \u0628\u0631\u0631\u0633\u06cc \u062d\u0636\u0648\u0631 \u0627\u0633\u062a.<\/p>\n<p>\u0627\u06cc\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0647\u0646\u06af\u0627\u0645 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0648\u0631\u0648\u062f\u06cc\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u0633\u0627\u0628\u0642\u0647 \u062c\u0627\u06cc\u0632\u0647 \u0645\u0641\u06cc\u062f \u0628\u0627\u0634\u062f\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0648\u0631\u0648\u062f\u06cc\u200c\u0647\u0627\u06cc \u062a\u06a9\u0631\u0627\u0631\u06cc \u0631\u0627 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0646\u06cc\u0645.  \u0627\u06af\u0631 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0631\u062f\u0646 120 \u0648\u0631\u0648\u062f\u06cc 2 \u062b\u0627\u0646\u06cc\u0647 \u0637\u0648\u0644 \u0645\u06cc \u06a9\u0634\u062f\u060c \u062a\u0635\u0648\u0631 \u06a9\u0646\u06cc\u062f 10000 \u0648\u0631\u0648\u062f\u06cc \u0631\u0627 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0646\u06cc\u062f.  \u062f\u0631 \u0686\u0646\u06cc\u0646 \u0645\u0642\u06cc\u0627\u0633\u06cc\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0633\u06cc\u0627\u0631 \u0627\u0641\u0632\u0627\u06cc\u0634 \u06cc\u0627\u0641\u062a\u0647 \u0627\u06cc \u06a9\u0647 \u0628\u0627 \u0645\u062c\u0645\u0648\u0639\u0647 \u0647\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f\u060c \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647 \u0627\u0633\u062a.<\/p>\n<p>\u0627\u06cc\u0646 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u0637\u0648\u0631 \u0645\u0639\u0645\u0648\u0644 \u0631\u062e \u0646\u062f\u0647\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 \u0635\u0648\u0631\u062a \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062a\u0641\u0627\u0648\u062a \u0628\u0632\u0631\u06af\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u062f.  \u0646\u0645\u0627\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u0646\u0627\u0633\u0628 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0645\u0627 \u062f\u0631 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0686\u0646\u06cc\u0646 \u0645\u0648\u0642\u0639\u06cc\u062a \u0647\u0627\u06cc\u06cc \u06a9\u0645\u06a9 \u06a9\u0646\u062f \u0648 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0639\u0645\u0644\u06a9\u0631\u062f \u06a9\u062f \u0645\u0627 \u062a\u0641\u0627\u0648\u062a \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u062f.<\/p>\n<h3 id=\"stringconcatenation\"><span class=\"ez-toc-section\" id=\"%d8%a7%d9%84%d8%ad%d8%a7%d9%82_%d8%b1%d8%b4%d8%aa%d9%87\"><\/span>\u0627\u0644\u062d\u0627\u0642 \u0631\u0634\u062a\u0647<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0631\u0634\u062a\u0647 \u0647\u0627 \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u062f\u0631 \u067e\u0627\u06cc\u062a\u0648\u0646 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0627\u067e\u0630\u06cc\u0631 \u0647\u0633\u062a\u0646\u062f \u0648 \u0645\u062a\u0639\u0627\u0642\u0628\u0627\u064b\u060c \u0627\u0644\u062d\u0627\u0642 \u0631\u0634\u062a\u0647 \u0647\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0646\u062f \u0628\u0627\u0634\u062f.  \u0631\u0648\u0634 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0628\u0631\u0627\u06cc \u0628\u0647 \u0647\u0645 \u067e\u06cc\u0648\u0633\u062a\u0646 \u0631\u0634\u062a\u0647 \u0647\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u062f\u0631 \u0645\u0648\u0642\u0639\u06cc\u062a \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u06a9\u0627\u0631\u0628\u0631\u062f \u062f\u0627\u0631\u062f.<\/p>\n<p>\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 <code>+<\/code> (\u0628\u0647 \u0639\u0644\u0627\u0648\u0647) \u0628\u0631\u0627\u06cc \u067e\u06cc\u0648\u0633\u062a\u0646 \u0628\u0647 \u0631\u0634\u062a\u0647 \u0647\u0627.  \u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0686\u0646\u062f \u0634\u06cc String \u0627\u06cc\u062f\u0647 \u0622\u0644 \u0627\u0633\u062a \u0648 \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0646\u06cc\u0633\u062a.  \u0627\u06af\u0631 \u0627\u0632 <code>+<\/code> \u0639\u0645\u0644\u06af\u0631 \u0628\u0631\u0627\u06cc \u0627\u0644\u062d\u0627\u0642 \u0686\u0646\u062f \u0631\u0634\u062a\u0647\u060c \u0647\u0631 \u0627\u0644\u062d\u0627\u0642 \u06cc\u06a9 \u0634\u06cc \u062c\u062f\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f \u0632\u06cc\u0631\u0627 \u0631\u0634\u062a\u0647 \u0647\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u0627\u067e\u0630\u06cc\u0631 \u0647\u0633\u062a\u0646\u062f.  \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u06cc\u062c\u0627\u062f \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0627\u0634\u06cc\u0627\u0621 \u0631\u0634\u062a\u0647 \u0627\u06cc \u062c\u062f\u06cc\u062f \u062f\u0631 \u062d\u0627\u0641\u0638\u0647 \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p>\u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 concatenate \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 <code>+=<\/code> \u0628\u0631\u0627\u06cc \u067e\u06cc\u0648\u0633\u062a\u0646 \u0628\u0647 \u0631\u0634\u062a\u0647 \u0647\u0627\u060c \u0627\u0645\u0627 \u0627\u06cc\u0646 \u0641\u0642\u0637 \u0628\u0631\u0627\u06cc \u062f\u0648 \u0631\u0634\u062a\u0647 \u062f\u0631 \u06cc\u06a9 \u0632\u0645\u0627\u0646 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0628\u0631 \u062e\u0644\u0627\u0641 \u0631\u0634\u062a\u0647 <code>+<\/code> \u0639\u0645\u0644\u06af\u0631 \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u06cc\u0634 \u0627\u0632 \u062f\u0648 \u0631\u0634\u062a\u0647 \u0631\u0627 \u0628\u0647 \u0647\u0645 \u0628\u067e\u06cc\u0648\u0646\u062f\u062f.<\/p>\n<p>\u0627\u06af\u0631 \u06cc\u06a9 \u062a\u06a9\u0631\u0627\u0631 \u06a9\u0646\u0646\u062f\u0647 \u0645\u0627\u0646\u0646\u062f \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u062f\u0627\u0631\u06cc\u0645 \u06a9\u0647 \u062f\u0627\u0631\u0627\u06cc \u0686\u0646\u062f\u06cc\u0646 \u0631\u0634\u062a\u0647 \u0627\u0633\u062a\u060c \u0631\u0627\u0647 \u0627\u06cc\u062f\u0647 \u0622\u0644 \u0628\u0631\u0627\u06cc \u0627\u0644\u062d\u0627\u0642 \u0622\u0646\u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>.join()<\/code> \u0631\u0648\u0634.<\/p>\n<p>\u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u0641\u0647\u0631\u0633\u062a\u06cc \u0627\u0632 \u0647\u0632\u0627\u0631\u0627\u0646 \u06a9\u0644\u0645\u0647 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u0645 \u0648 \u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0631\u0627 \u0628\u0627 \u0647\u0645 \u0645\u0642\u0627\u06cc\u0633\u0647 \u06a9\u0646\u06cc\u0645 <code>.join()<\/code> \u0648 <code>+=<\/code> \u0645\u0642\u0627\u06cc\u0633\u0647 \u0627\u067e\u0631\u0627\u062a\u0648\u0631:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">import<\/span> timeit\n\n\nlist_of_words = (<span class=\"hljs-string\">\"foo \"<\/span>) * <span class=\"hljs-number\">1000<\/span>\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">using_join<\/span>(<span class=\"hljs-params\">list_of_words<\/span>):<\/span>\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-string\">\"\"<\/span>.join(list_of_words)\n\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">using_concat_operator<\/span>(<span class=\"hljs-params\">list_of_words<\/span>):<\/span>\n    final_string = <span class=\"hljs-string\">\"\"<\/span>\n    <span class=\"hljs-keyword\">for<\/span> i <span class=\"hljs-keyword\">in<\/span> list_of_words:\n        final_string += i\n    <span class=\"hljs-keyword\">return<\/span> final_string\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Using join() takes {} s\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'using_join(list_of_words)'<\/span>, <span class=\"hljs-string\">'from __main__ import using_join, list_of_words'<\/span>)))\n\n<span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"Using += takes {} s\"<\/span>.<span class=\"hljs-built_in\">format<\/span>(timeit.timeit(<span class=\"hljs-string\">'using_concat_operator(list_of_words)'<\/span>, <span class=\"hljs-string\">'from __main__ import using_concat_operator, list_of_words'<\/span>)))\n<\/code><\/pre>\n<p>\u0628\u0639\u062f \u0627\u0632 \u062f\u0648 \u0628\u0627\u0631 \u062a\u0644\u0627\u0634:<\/p>\n<pre><code class=\"hljs\">$ python join-vs-concat.py \nUsing join() takes 14.0949640274 s\nUsing += takes 79.5631570816 s\n$ \n$ python join-vs-concat.py \nUsing join() takes 13.3542580605 s\nUsing += takes 76.3233859539 s\n<\/code><\/pre>\n<p>\u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a \u06a9\u0647 <code>.join()<\/code> \u0645\u062a\u062f \u0646\u0647 \u062a\u0646\u0647\u0627 \u0645\u0646\u0638\u0645\u200c\u062a\u0631 \u0648 \u062e\u0648\u0627\u0646\u0627\u062a\u0631 \u0627\u0633\u062a\u060c \u0628\u0644\u06a9\u0647 \u0628\u0647 \u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0633\u0631\u06cc\u0639\u200c\u062a\u0631 \u0627\u0632 \u0639\u0645\u0644\u06af\u0631 \u0627\u0644\u062d\u0627\u0642 \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u0627\u062a\u0635\u0627\u0644 \u0631\u0634\u062a\u0647\u200c\u0647\u0627 \u062f\u0631 \u06cc\u06a9 \u062a\u06a9\u0631\u0627\u0631\u06a9\u0646\u0646\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p>\u0627\u06af\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0639\u0645\u0644\u06cc\u0627\u062a \u0627\u0644\u062d\u0627\u0642 \u0631\u0634\u062a\u0647 \u0647\u0627 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u06cc\u062f\u060c \u0644\u0630\u062a \u0628\u0631\u062f\u0646 \u0627\u0632 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0631\u0648\u06cc\u06a9\u0631\u062f\u06cc \u06a9\u0647 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 7 \u0628\u0631\u0627\u0628\u0631 \u0633\u0631\u06cc\u0639\u062a\u0631 \u0627\u0633\u062a\u060c \u0641\u0648\u0642 \u0627\u0644\u0639\u0627\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0645\u0627 \u062b\u0627\u0628\u062a \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647 \u0628\u0647\u06cc\u0646\u0647\u200c\u0633\u0627\u0632\u06cc \u06a9\u062f \u062f\u0631 \u067e\u0627\u06cc\u062a\u0648\u0646 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0647\u0645 \u0627\u0633\u062a \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062a\u0641\u0627\u0648\u062a \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0622\u0646 \u0631\u0627 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0631\u062f\u06cc\u0645.  \u0627\u0632 \u0637\u0631\u06cc\u0642 <em>\u0632\u0645\u0627\u0646<\/em> \u0645\u0627\u0698\u0648\u0644 \u0648 <em>cProfile<\/em> profiler\u060c \u0645\u0627 \u062a\u0648\u0627\u0646\u0633\u062a\u06cc\u0645 \u0628\u06af\u0648\u06cc\u06cc\u0645 \u0627\u062c\u0631\u0627\u06cc \u06a9\u062f\u0627\u0645 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0632\u0645\u0627\u0646 \u06a9\u0645\u062a\u0631\u06cc \u0645\u06cc \u0628\u0631\u062f \u0648 \u0627\u0632 \u0622\u0646 \u0628\u0627 \u0627\u0631\u0642\u0627\u0645 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646 \u062a\u0647\u06cc\u0647 \u06a9\u0646\u06cc\u0645.  \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062f\u0627\u062f\u0647 \u0648 \u0633\u0627\u062e\u062a\u0627\u0631\u0647\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0646\u062a\u0631\u0644\u06cc \u06a9\u0647 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30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 12<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u0645\u0646\u0627\u0628\u0639 \u0647\u0631\u06af\u0632 \u0628\u0631\u0627\u06cc \u0628\u0631\u0622\u0648\u0631\u062f\u0646 \u0646\u06cc\u0627\u0632\u0647\u0627\u06cc \u0631\u0648 \u0628\u0647 \u0631\u0634\u062f \u062f\u0631 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