{"id":1192,"date":"2021-04-21T23:12:48","date_gmt":"2021-04-21T17:42:48","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=1192"},"modified":"2021-06-21T17:55:55","modified_gmt":"2021-06-21T12:25:55","slug":"introduction-to-sets-in-python-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/introduction-to-sets-in-python-solution\/","title":{"rendered":"Introduction to Sets in Python | HackerRank Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve <strong>Introduction to Sets 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\/04\/introduction-to-sets-in-python-hackerrank-solution-codingbroz.png\" alt=\"Introduction to Sets in Python - Hacker Rank Solution\" class=\"wp-image-1194\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/04\/introduction-to-sets-in-python-hackerrank-solution-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/04\/introduction-to-sets-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-662cda174b3a6\" 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-662cda174b3a6\" 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\/introduction-to-sets-in-python-solution\/#Objective\" title=\"Objective\">Objective<\/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\/introduction-to-sets-in-python-solution\/#Task\" title=\"Task\">Task<\/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\/introduction-to-sets-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-4\" href=\"https:\/\/www.codingbroz.com\/introduction-to-sets-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-5\" href=\"https:\/\/www.codingbroz.com\/introduction-to-sets-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-6\" href=\"https:\/\/www.codingbroz.com\/introduction-to-sets-in-python-solution\/#Solution_%E2%80%93_Introduction_to_Sets_in_Python_%E2%80%93_Hacker_Rank_Solution\" title=\"Solution &#8211; Introduction to Sets in Python &#8211; Hacker Rank Solution \">Solution &#8211; Introduction to Sets in Python &#8211; Hacker Rank Solution <\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.codingbroz.com\/introduction-to-sets-in-python-solution\/#Python_3\" title=\"Python 3 \">Python 3 <\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Objective\"><\/span><strong>Objective<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A set is an unordered collection of elements without duplicate entries.<\/p>\n\n\n\n<p>When printed, iterated or converted into a sequence, its elements will appear in an arbitrary order.<\/p>\n\n\n\n<p><strong>Example<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&gt;&gt;&gt; print set()\nset([])\n\n&gt;&gt;&gt; print set('HackerRank')\nset(['a', 'c', 'e', 'H', 'k', 'n', 'r', 'R'])\n\n&gt;&gt;&gt; print set([1,2,1,2,3,4,5,6,0,9,12,22,3])\nset([0, 1, 2, 3, 4, 5, 6, 9, 12, 22])\n\n&gt;&gt;&gt; print set((1,2,3,4,5,5))\nset([1, 2, 3, 4, 5])\n\n&gt;&gt;&gt; print set(set(['H','a','c','k','e','r','r','a','n','k']))\nset(['a', 'c', 'r', 'e', 'H', 'k', 'n'])\n\n&gt;&gt;&gt; print set({'Hacker' : 'DOSHI', 'Rank' : 616 })\nset(['Hacker', 'Rank'])\n\n&gt;&gt;&gt; print set(enumerate(['H','a','c','k','e','r','r','a','n','k']))\nset([(6, 'r'), (7, 'a'), (3, 'k'), (4, 'e'), (5, 'r'), (9, 'k'), (2, 'c'), (0, 'H'), (1, 'a'), (8, 'n')])<\/pre>\n\n\n\n<p>Basically, sets are used for membership testing and eliminating duplicate entries.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Task\"><\/span><strong>Task<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Now, let&#8217;s use our knowledge of sets and help Mickey.<\/p>\n\n\n\n<p>Ms. Gabriel Williams is a botany professor at District College. One day, she asked her student Mickey to compute the average of all the plants with distinct heights in her greenhouse.<\/p>\n\n\n\n<p>Formula used:<\/p>\n\n\n\n<p><strong>Average = Sum of Distinct Heights \/ Total Number of Distinct Heights<\/strong><\/p>\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 the integer,&nbsp;<em><strong>N<\/strong><\/em>, the total number of plants.<\/p>\n\n\n\n<p>The second line contains the&nbsp;<strong><em>N<\/em><\/strong>&nbsp;space separated heights of the plants.<\/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><strong>0 &lt; N &lt;= 100<\/strong><\/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>Output the average height value on a single line.<\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">10\n161 182 161 154 176 170 167 171 170 174<\/pre>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">169.375<\/pre>\n\n\n\n<p><strong>Explanation<\/strong><\/p>\n\n\n\n<p>Here, set&nbsp;<strong>([154, 161, 167, 170, 171, 174, 176, 182])&nbsp;<\/strong>is the set containing the distinct heights. Using the sum() and len() functions, we can compute the average.<\/p>\n\n\n\n<p><strong>Average = 1355 \/ 8 = 169.375<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Introduction_to_Sets_in_Python_%E2%80%93_Hacker_Rank_Solution\"><\/span><strong>Solution &#8211; Introduction to Sets in Python &#8211; Hacker Rank Solution <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Python_3\"><\/span><strong>Python 3 <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\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=\"\">def average(array):\n    # your code goes here\n    array = set(array)\n    return sum(array) \/ len(array)\n\nif __name__ == '__main__':\n    n = int(input())\n    arr = list(map(int, input().split()))\n    result = average(arr)\n    print(result)<\/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\/py-introduction-to-sets\/problem\" target=\"_blank\" aria-label=\"Introduction to Sets in Python (opens in a new tab)\" rel=\"noreferrer noopener\" class=\"rank-math-link\">Introduction to Sets in Python<\/a>)<\/strong> is generated by <strong>Hacker Rank<\/strong> but the Solution is provided by <strong>CodingBroz<\/strong>. This tutorial is only for <strong>Educational<\/strong> and <strong>Learning<\/strong> Purpose.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hello coders, today we are going to solve Introduction to Sets in Python Hacker Rank Solution.<\/p>\n","protected":false},"author":1,"featured_media":1194,"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],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/04\/introduction-to-sets-in-python-hackerrank-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1192"}],"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=1192"}],"version-history":[{"count":4,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1192\/revisions"}],"predecessor-version":[{"id":3625,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1192\/revisions\/3625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/1194"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=1192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=1192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=1192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}