{"id":737,"date":"2021-03-11T15:00:00","date_gmt":"2021-03-11T09:30:00","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=737"},"modified":"2021-06-21T17:26:21","modified_gmt":"2021-06-21T11:56:21","slug":"lists-in-python-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/lists-in-python-solution\/","title":{"rendered":"Lists in Python | HackerRank Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve <strong>Lists in Python Hacker Rank Solution<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/03\/lists-in-python-hackerrank-solution-codingbroz.png\" alt=\"Lists in Python - Hacker Rank Solution\" class=\"wp-image-975\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/03\/lists-in-python-hackerrank-solution-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/03\/lists-in-python-hackerrank-solution-codingbroz-768x432.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-662d95cea405d\" class=\"ez-toc-cssicon-toggle-label\"><label class=\"ez-toc-title\">Table of Contents<\/label>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0090ff;color:#0090ff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0090ff;color:#0090ff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-662d95cea405d\" checked \/><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:\/\/www.codingbroz.com\/lists-in-python-solution\/#Problem\" title=\"Problem\">Problem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.codingbroz.com\/lists-in-python-solution\/#Input_Format\" title=\" Input Format\"> Input Format<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.codingbroz.com\/lists-in-python-solution\/#Constraints\" title=\"Constraints\">Constraints<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.codingbroz.com\/lists-in-python-solution\/#Output_Format\" title=\"Output Format\">Output Format<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.codingbroz.com\/lists-in-python-solution\/#Solution_%E2%80%93_Lists_in_Python_%E2%80%93_Hacker_Rank_Solution\" title=\"Solution &#8211; Lists in Python &#8211; Hacker Rank Solution\">Solution &#8211; Lists in Python &#8211; Hacker Rank Solution<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Problem\"><\/span><strong>Problem<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Consider a list (list = []). You can perform the following commands:<\/p>\n\n\n\n<ol><li>insert i e: Insert integer <strong>e<\/strong>&nbsp;at position&nbsp;<em><strong>i<\/strong><\/em>.<\/li><li>print: Print the list.<\/li><li>remove e: Delete the first occurrence of integer&nbsp;<strong>e<\/strong>.<\/li><li>append e: Insert integer&nbsp;<strong>e<\/strong>&nbsp;at the end of the list.<\/li><li>sort: Sort the list.<\/li><li>pop: Pop the last element from the list.<\/li><li>reverse: Reverse the list.<\/li><\/ol>\n\n\n\n<p>Initialize your list and read in the value of&nbsp;<strong><em>n<\/em><\/strong>&nbsp;followed by&nbsp;<strong><em>n<\/em><\/strong>&nbsp;lines of commands where each command will be of the&nbsp;<strong>7<\/strong>&nbsp;types listed above. Iterate through each command in order and perform the corresponding operation on your list.<\/p>\n\n\n\n<p><strong>Example<\/strong><\/p>\n\n\n\n<p><strong>N = 4<\/strong><br><strong>append 1<\/strong><br><strong>append 2<\/strong><br><strong>insert 3 1<\/strong><br><strong>print<\/strong><\/p>\n\n\n\n<ul><li><strong>append 1:&nbsp;<\/strong>Append&nbsp;<strong>1<\/strong>&nbsp;to the list,&nbsp;<strong><em>arr<\/em><\/strong>&nbsp;=&nbsp;<strong>[1]<\/strong>.<\/li><li><strong>append 2:&nbsp;<\/strong>Append&nbsp;<strong>2<\/strong>&nbsp;to the list,&nbsp;<strong><em>arr&nbsp;<\/em><\/strong>=&nbsp;<strong>[1, 2]<\/strong>.<\/li><li><strong>insert 3 1:&nbsp;<\/strong>Insert&nbsp;<strong>3&nbsp;<\/strong>at index&nbsp;<strong>1,<\/strong><em><strong>arr<\/strong><\/em>&nbsp;=<strong>&nbsp;[1, 3, 2]<\/strong>.<\/li><li><strong>print:&nbsp;<\/strong>Print the array.<\/li><\/ul>\n\n\n\n<p><strong>Output:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;1, 3, 2]<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Input_Format\"><\/span> <strong>Input Format<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The first line contains an integer,&nbsp;<strong><em>n<\/em><\/strong>, denoting the number of commands.<br>Each line&nbsp;<strong><em>i<\/em><\/strong>&nbsp;of the&nbsp;<strong><em>n<\/em><\/strong>&nbsp;subsequent lines contains one of the commands described above.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Constraints\"><\/span><strong>Constraints<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The elements added to the list must be integers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Output_Format\"><\/span><strong>Output Format<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>For each command of type print, print the list on a new line.<\/p>\n\n\n\n<p><strong>Sample Input 0<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>12\ninsert 0 5\ninsert 1 10\ninsert 0 6\nprint\nremove 6\nappend 9\nappend 1\nsort\nprint\npop\nreverse\nprint<\/code><\/pre>\n\n\n\n<p><strong>Sample Output 0<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;6, 5, 10]\n&#91;1, 5, 9, 10]\n&#91;9, 5, 1]<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Lists_in_Python_%E2%80%93_Hacker_Rank_Solution\"><\/span><strong>Solution &#8211; Lists in Python &#8211; Hacker Rank Solution<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">if __name__ == '__main__':\n    N = int(input())\n    L=[];\n    for i in range(0,N):\n        cmd=input().split();\n        if cmd[0] == \"insert\":\n            L.insert(int(cmd[1]),int(cmd[2]))\n        elif cmd[0] == \"append\":\n            L.append(int(cmd[1]))\n        elif cmd[0] == \"pop\":\n            L.pop();\n        elif cmd[0] == \"print\":\n            print(L)\n        elif cmd[0] == \"remove\":\n            L.remove(int(cmd[1]))\n        elif cmd[0] == \"sort\":\n            L.sort();\n        else:\n            L.reverse();<\/pre>\n\n\n\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<ins class=\"adsbygoogle\"\n     style=\"display:block; text-align:center;\"\n     data-ad-layout=\"in-article\"\n     data-ad-format=\"fluid\"\n     data-ad-client=\"ca-pub-5246141430412355\"\n     data-ad-slot=\"8798433565\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\n\n\n\n<p><strong>Disclaimer:<\/strong> The above Problem <strong>(<a href=\"https:\/\/www.hackerrank.com\/challenges\/python-lists\/problem\" target=\"_blank\" aria-label=\"Lists in Python (opens in a new tab)\" rel=\"noreferrer noopener nofollow\" class=\"rank-math-link\">Lists in Python<\/a>)<\/strong> is generated by <strong><a href=\"https:\/\/www.hackerrank.com\/\" target=\"_blank\" aria-label=\"Hacker Rank (opens in a new tab)\" rel=\"noreferrer noopener\" class=\"rank-math-link\">Hacker Rank<\/a><\/strong> but the Solution is provided by <strong>CodingBroz<\/strong>. This tutorial is only for <strong>Educational<\/strong> and <strong>Learning<\/strong> purposes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hello coders, today we are going to solve Lists in Python Hacker Rank Solution.<\/p>\n","protected":false},"author":1,"featured_media":975,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9,107],"tags":[80,108,18,92,93,109],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/03\/lists-in-python-hackerrank-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/737"}],"collection":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/comments?post=737"}],"version-history":[{"count":6,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/737\/revisions"}],"predecessor-version":[{"id":3604,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/737\/revisions\/3604"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/975"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}