{"id":2055,"date":"2021-05-29T19:28:52","date_gmt":"2021-05-29T13:58:52","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=2055"},"modified":"2021-06-21T18:00:23","modified_gmt":"2021-06-21T12:30:23","slug":"collections-namedtuple-python-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/collections-namedtuple-python-solution\/","title":{"rendered":"Collections.namedtuple() in Python | HackerRank Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve <strong>Collections.namedtuple() HackerRank Solution<\/strong> in <strong>Python<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1201\" height=\"675\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/colections-namedtuple-in-python-solution-codingbroz.png\" alt=\"Collections.namedtuple() in Python \" class=\"wp-image-2057\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/colections-namedtuple-in-python-solution-codingbroz.png 1201w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/colections-namedtuple-in-python-solution-codingbroz-768x432.png 768w\" sizes=\"(max-width: 1201px) 100vw, 1201px\" \/><\/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-662ca5698a7bc\" 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-662ca5698a7bc\" 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\/collections-namedtuple-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\/collections-namedtuple-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\/collections-namedtuple-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\/collections-namedtuple-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\/collections-namedtuple-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\/collections-namedtuple-python-solution\/#Solution_%E2%80%93_Collectionsnamedtuple_in_Python\" title=\"Solution &#8211; Collections.namedtuple() in Python \">Solution &#8211; Collections.namedtuple() in Python <\/a><\/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><strong>Collections.namedtuple()<\/strong><br>Basically,&nbsp;<em>namedtuples<\/em>&nbsp;are easy to create, lightweight object types.<br>They turn tuples into convenient containers for simple tasks.<br>With&nbsp;<em>namedtuples<\/em>, you don\u2019t have to use integer indices for accessing members of a tuple.<\/p>\n\n\n\n<p><strong>Example<\/strong><br><sub><strong>Code 01<\/strong><\/sub><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&gt;&gt;&gt; from collections import namedtuple\n&gt;&gt;&gt; Point = namedtuple('Point','x,y')\n&gt;&gt;&gt; pt1 = Point(1,2)\n&gt;&gt;&gt; pt2 = Point(3,4)\n&gt;&gt;&gt; dot_product = ( pt1.x * pt2.x ) +( pt1.y * pt2.y )\n&gt;&gt;&gt; print dot_product\n11<\/code><\/pre>\n\n\n\n<p><strong>Code 02<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&gt;&gt;&gt; from collections import namedtuple\n&gt;&gt;&gt; Car = namedtuple('Car','Price Mileage Colour Class')\n&gt;&gt;&gt; xyz = Car(Price = 100000, Mileage = 30, Colour = 'Cyan', Class = 'Y')\n&gt;&gt;&gt; print xyz\nCar(Price=100000, Mileage=30, Colour='Cyan', Class='Y')\n&gt;&gt;&gt; print xyz.Class\nY<\/code><\/pre>\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>Dr. John Wesley has a spreadsheet containing a list of student&#8217;s&nbsp;<em><strong>IDs<\/strong><\/em>,<em><strong>&nbsp;marks<\/strong><\/em>,&nbsp;<em><strong>class<\/strong><\/em>&nbsp;and&nbsp;<em><strong>name<\/strong><\/em>.<\/p>\n\n\n\n<p>Your task is to help Dr. Wesley calculate the average marks of the students.<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong><em>Average<\/em> = <em>Sum of all marks<\/em> \/ <em>Total Students<\/em><\/strong><\/p>\n\n\n\n<p><strong><sub>Note:<br>1. Columns can be in any order. IDs, marks, class and name can be written in any order in the spreadsheet.<br>2. Column names are&nbsp;<code>ID<\/code>,&nbsp;<code>MARKS<\/code>,&nbsp;<code>CLASS<\/code>&nbsp;and&nbsp;<code>NAME<\/code>. (The spelling and case type of these names won&#8217;t change.)<\/sub><\/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 an integer&nbsp;<em><strong>N<\/strong><\/em>, the total number of students.<br>The second line contains the names of the columns in any order.<br>The next&nbsp;<strong><em>N<\/em><\/strong>&nbsp;lines contains the&nbsp;<em><strong>marks<\/strong><\/em>,&nbsp;<em><strong>IDs<\/strong><\/em>,&nbsp;<em><strong>name<\/strong><\/em>&nbsp;and&nbsp;<em><strong>class<\/strong><\/em>, under their respective column names.<\/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<ul><li><strong>0 &lt; <em>N<\/em> &lt;= 100<\/strong><\/li><\/ul>\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>Print the average marks of the list corrected to 2 decimal places.<\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<p><strong>TESTCASE 01<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>5\nID         MARKS      NAME       CLASS     \n1          97         Raymond    7         \n2          50         Steven     4         \n3          91         Adrian     9         \n4          72         Stewart    5         \n5          80         Peter      6   <\/code><\/pre>\n\n\n\n<p><strong>TESTCASE 02<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>5\nMARKS      CLASS      NAME       ID        \n92         2          Calum      1         \n82         5          Scott      2         \n94         2          Jason      3         \n55         8          Glenn      4         \n82         2          Fergus     5<\/code><\/pre>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<p><strong>TESTCASE 01<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>78.00<\/code><\/pre>\n\n\n\n<p><strong>TESTCASE 02<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>81.00<\/code><\/pre>\n\n\n\n<p><strong>Explanation<\/strong><\/p>\n\n\n\n<p><sub><strong>TESTCASE 01<\/strong><\/sub><\/p>\n\n\n\n<p>Average =<strong>&nbsp;(97 + 50 + 91 + 72 + 80) \/ 5<\/strong><\/p>\n\n\n\n<p><em>Can you solve this challenge in&nbsp;<code>4 lines of code or less<\/code>?<\/em><br><strong>NOTE<\/strong>: There is&nbsp;<code>no penalty<\/code>&nbsp;for solutions that are correct but have more than 4 lines.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Collectionsnamedtuple_in_Python\"><\/span><strong>Solution &#8211; Collections.namedtuple() in Python <\/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=\"\"># Enter your code here. Read input from STDIN. Print output to STDOUT\nfrom collections import namedtuple\n\nn = int(input())\nfields = input().split()\n\ntotal_marks = 0\nfor _ in range(n):\n    students = namedtuple('student', fields)\n    MARKS, CLASS, NAME, ID = input().split()\n    student = students(MARKS, CLASS, NAME, ID)\n    total_marks += int(student.MARKS)\nprint('{:.2f}'.format(total_marks \/ n))\n<\/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-collections-namedtuple\/problem\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"rank-math-link\">Collections.namedtuple()<\/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 Collections.namedtuple() HackerRank Solution in Python.<\/p>\n","protected":false},"author":1,"featured_media":2057,"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\/05\/colections-namedtuple-in-python-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/2055"}],"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=2055"}],"version-history":[{"count":3,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/2055\/revisions"}],"predecessor-version":[{"id":3629,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/2055\/revisions\/3629"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/2057"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=2055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=2055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=2055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}