{"id":1870,"date":"2021-05-26T21:24:20","date_gmt":"2021-05-26T15:54:20","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=1870"},"modified":"2021-06-21T11:51:23","modified_gmt":"2021-06-21T06:21:23","slug":"c-class-template-specialization-in-c-hackerrank-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/c-class-template-specialization-in-c-hackerrank-solution\/","title":{"rendered":"C++ Class Template Specialization in C++ | HackerRank Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve<strong> C++ Class Template Specialization HackerRank Solution in C++<\/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\/05\/class-template-specialization-c-solution-codingbroz.png\" alt=\"C++ Class Template Specialization\" class=\"wp-image-1873\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/class-template-specialization-c-solution-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/class-template-specialization-c-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-662cf4a2ed315\" 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-662cf4a2ed315\" 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\/c-class-template-specialization-in-c-hackerrank-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\/c-class-template-specialization-in-c-hackerrank-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\/c-class-template-specialization-in-c-hackerrank-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\/c-class-template-specialization-in-c-hackerrank-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\/c-class-template-specialization-in-c-hackerrank-solution\/#Solution_%E2%80%93_C_Class_Template_Specialization_in_C\" title=\"Solution &#8211; C++ Class Template Specialization in C++\">Solution &#8211; C++ Class Template Specialization in C++<\/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:\/\/www.codingbroz.com\/c-class-template-specialization-in-c-hackerrank-solution\/#C\" title=\"C++\">C++<\/a><\/li><\/ul><\/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 class=\"has-black-color has-text-color\">You are given a&nbsp;<em>main<\/em>&nbsp;function which reads the enumeration values for two different types as input, then prints out the corresponding&nbsp;<a href=\"http:\/\/en.cppreference.com\/w\/cpp\/language\/enum\" target=\"_blank\" rel=\"noopener\">enumeration<\/a>&nbsp;names. Write a class template that can provide the names of the enumeration values for both types. If the enumeration value is not valid, then print&nbsp;<code>unknown<\/code>.<\/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&nbsp;<strong><em>t<\/em><\/strong>, the number of test cases.<br>Each of the&nbsp;<strong><em>t<\/em><\/strong>&nbsp;subsequent lines contains two space-separated integers. The first integer is a color value,&nbsp;<strong><em>c<\/em><\/strong>, and the second integer is a fruit value,&nbsp;<strong><em>f<\/em><\/strong>.<\/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>1 &lt;= <em>t<\/em> &lt;= 100<\/strong><\/li><li><strong>&#8211; 2 x 10<sup>9<\/sup> &lt;= <em>c<\/em> &lt;= 2 x 10<sup>9<\/sup><\/strong><\/li><li><strong>&#8211; 2 x 10<sup>9<\/sup> &lt;= <em>f<\/em> &lt;= 2 x 10<sup>9<\/sup><\/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>The locked stub code in your editor prints&nbsp;<strong><em>t<\/em><\/strong>&nbsp;lines containing the&nbsp;<em>color<\/em>&nbsp;name and the&nbsp;<em>fruit<\/em>&nbsp;name corresponding to the input enumeration index.<\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2\n1 0\n3 3<\/code><\/pre>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>green apple\nunknown unknown<\/code><\/pre>\n\n\n\n<p><strong>Explanation<\/strong><\/p>\n\n\n\n<p>Since&nbsp;<em><strong>t = 2<\/strong><\/em>, there are two lines of output.<\/p>\n\n\n\n<ol><li>The two input index values,&nbsp;<strong>1<\/strong>&nbsp;and&nbsp;<strong>0<\/strong>, correspond to&nbsp;<em>green<\/em>&nbsp;in the color enumeration and&nbsp;<em>apple<\/em>&nbsp;in the fruit enumeration. Thus, we print&nbsp;<code>green apple<\/code>.<\/li><li>The two input values,&nbsp;<strong>3<\/strong>&nbsp;and&nbsp;<strong>3<\/strong>, are outside of the range of our enums. Thus, we print&nbsp;<code>unknown unknown<\/code>.<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_C_Class_Template_Specialization_in_C\"><\/span><strong>Solution &#8211; C++ Class Template Specialization in C++<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"C\"><\/span><strong>C++<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;iostream>\nusing namespace std;\nenum class Fruit { apple, orange, pear };\nenum class Color { red, green, orange };\n\ntemplate &lt;typename T> struct Traits;\n\n\/\/ Define specializations for the Traits class template here.\ntemplate &lt;> \nstruct Traits&lt;Fruit>{\n    static string name(int index){\n        switch(index){\n                case 0:return \"apple\";\n                case 1: return \"orange\" ;\n                case 2: return \"pear\";\n        }  \n        return \"unknown\";\n    } \n};\ntemplate &lt;> \nstruct Traits&lt;Color>{\n    static string name(int index){\n        switch(index){\n                case 0:return \"red\";\n                case 1: return \"green\" ;\n                case 2: return \"orange\";           \n        }\n        return \"unknown\";  \n    } \n};\n\n\n\nint main()\n{\n\tint t = 0; std::cin >> t;\n\n    for (int i=0; i!=t; ++i) {\n        int index1; std::cin >> index1;\n        int index2; std::cin >> index2;\n        cout &lt;&lt; Traits&lt;Color>::name(index1) &lt;&lt; \" \";\n        cout &lt;&lt; Traits&lt;Fruit>::name(index2) &lt;&lt; \"\\n\";\n    }\n}\n<\/pre>\n\n\n\n<script async=\"\" src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\n<ins class=\"adsbygoogle\" style=\"display:block; text-align:center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-5246141430412355\" data-ad-slot=\"8798433565\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script>\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\/cpp-class-template-specialization\/problem\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"rank-math-link\">C++ Class Template Specialization<\/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 C++ Class Template Specialization HackerRank Solution in C++.<\/p>\n","protected":false},"author":1,"featured_media":1873,"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":[9,159],"tags":[80,81,18],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/class-template-specialization-c-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1870"}],"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=1870"}],"version-history":[{"count":4,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1870\/revisions"}],"predecessor-version":[{"id":3586,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1870\/revisions\/3586"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/1873"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=1870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=1870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=1870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}