{"id":1921,"date":"2021-05-28T19:18:07","date_gmt":"2021-05-28T13:48:07","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=1921"},"modified":"2021-06-20T22:24:38","modified_gmt":"2021-06-20T16:54:38","slug":"day-6-lets-review-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/day-6-lets-review-solution\/","title":{"rendered":"Day 6: Let&#8217;s Review | 30 Days Of Code | HackerRank Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve <strong>Day 6: Let&#8217;s Review HackerRank Solution<\/strong> in <strong>C++<\/strong>, <strong>Java<\/strong> and <strong>Python<\/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\/day-6-lets-review-30-days-of-code-solution-codingbroz.png\" alt=\"Day 6: Let's Review\" class=\"wp-image-1924\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/day-6-lets-review-30-days-of-code-solution-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/day-6-lets-review-30-days-of-code-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-6630a0dd83431\" 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-6630a0dd83431\" 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\/day-6-lets-review-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\/day-6-lets-review-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\/day-6-lets-review-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\/day-6-lets-review-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\/day-6-lets-review-solution\/#Solution_%E2%80%93_Day_6_Lets_Review\" title=\"Solution &#8211; Day 6: Let&#8217;s Review\">Solution &#8211; Day 6: Let&#8217;s Review<\/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\/day-6-lets-review-solution\/#C\" title=\"C++\">C++<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.codingbroz.com\/day-6-lets-review-solution\/#Java\" title=\"Java\">Java<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.codingbroz.com\/day-6-lets-review-solution\/#Python\" title=\"Python\">Python<\/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>Today we will expand our knowledge of strings, combining it with what we have already learned about loops.<\/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>Given a string,&nbsp;<strong><em>S<\/em><\/strong>, of length&nbsp;<strong><em>N<\/em><\/strong>&nbsp;that is indexed from&nbsp;<strong>0<\/strong>&nbsp;to&nbsp;<strong><em>N <\/em>&#8211; 1<\/strong>, print its&nbsp;<em>even-indexed<\/em>&nbsp;and&nbsp;<em>odd-indexed<\/em>&nbsp;characters as&nbsp;<strong>2<\/strong>&nbsp;space-separated strings on a single line (see the&nbsp;<em>Sample<\/em>&nbsp;below for more detail).<\/p>\n\n\n\n<p><strong>Note:<\/strong>&nbsp;<strong>0<\/strong>&nbsp;is considered to be an&nbsp;<em>even<\/em>&nbsp;index.<\/p>\n\n\n\n<p><strong>Example<\/strong><\/p>\n\n\n\n<p><strong><em>s<\/em> = adbecf<\/strong><\/p>\n\n\n\n<p>Print&nbsp;<code>abc def<\/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 an integer,&nbsp;<strong><em>T<\/em><\/strong>&nbsp;(the number of test cases).<br>Each line&nbsp;<strong><em>i<\/em><\/strong>&nbsp;of the&nbsp;<strong><em>T<\/em><\/strong>&nbsp;subsequent lines contain a string,&nbsp;<strong><em>S<\/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<p>For each String&nbsp;<strong><em>S<sub>j<\/sub><\/em><\/strong>&nbsp;(where&nbsp;<strong><em>0 <\/em>&lt;=<em> j <\/em>&lt;=<em> T &#8211; <\/em>1<\/strong>), print&nbsp;<strong><em>S<sub>j<\/sub><\/em><\/strong>&#8216;s&nbsp;<em>even-indexed<\/em>&nbsp;characters, followed by a space, followed by&nbsp;<strong><em>S<sub>j<\/sub><\/em><\/strong>&#8216;s&nbsp;<em>odd-indexed<\/em>&nbsp;characters.<\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2\nHacker\nRank<\/code><\/pre>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Hce akr\nRn ak<\/code><\/pre>\n\n\n\n<p><strong>Explanation<\/strong><\/p>\n\n\n\n<p><em>Test Case 0<\/em>:&nbsp;<strong><em>S<\/em> = &#8220;Hacker&#8221;<\/strong><br><strong><em>S<\/em>[0] = &#8220;H&#8221;<\/strong><br><strong><em>S<\/em>[1] = &#8220;a&#8221;<\/strong><br><strong><em>S<\/em>[2] = &#8220;c&#8221;<\/strong><br><strong><em>S<\/em>[3] = &#8220;k&#8221;<\/strong><br><strong><em>S<\/em>[4] = &#8220;e&#8221;<\/strong><br><strong><em>S<\/em>[5] = &#8220;r&#8221;<\/strong><br>The&nbsp;<em>even<\/em>&nbsp;indices are&nbsp;<strong>0<\/strong>,&nbsp;<strong>2<\/strong>, and&nbsp;<strong>4<\/strong>, and the&nbsp;<em>odd<\/em>&nbsp;indices are&nbsp;<strong>1<\/strong>,&nbsp;<strong>3<\/strong>, and&nbsp;<strong>5<\/strong>. We then print&nbsp;<em>a single line<\/em>&nbsp;of&nbsp;<strong>2<\/strong>&nbsp;space-separated strings; the first string contains the ordered characters from&nbsp;<strong><em>S<\/em><\/strong>&#8216;s&nbsp;<em>even<\/em>&nbsp;indices (<strong>Hce<\/strong>), and the second string contains the ordered characters from&nbsp;<strong><em>S<\/em><\/strong>&#8216;s&nbsp;<em>odd<\/em>&nbsp;indices (<strong>akr<\/strong>).<\/p>\n\n\n\n<p><em>Test Case 1<\/em>:&nbsp;<strong><em>S<\/em> = &#8220;Rank&#8221;<\/strong><br><strong><em>S<\/em>[0] = &#8220;R&#8221;<\/strong><br><strong><em>S<\/em>[1] = &#8220;a&#8221;<\/strong><br><strong><em>S<\/em>[2] = &#8220;n&#8221;<\/strong><br><strong><em>S<\/em>[3] = &#8220;k&#8221;<\/strong><br>The&nbsp;<em>even<\/em>&nbsp;indices are&nbsp;<strong>0<\/strong>, <strong>2<\/strong>&nbsp;and&nbsp;<strong>4<\/strong>, and the&nbsp;<em>odd<\/em>&nbsp;indices are&nbsp;<strong>1, 3<\/strong>&nbsp;and&nbsp;<strong>5<\/strong>. We then print&nbsp;<em>a single line<\/em>&nbsp;of&nbsp;<strong>2<\/strong>&nbsp;space-separated strings; the first string contains the ordered characters from&nbsp;<strong><em>S<\/em><\/strong>&#8216;s&nbsp;<em>even<\/em>&nbsp;indices (<strong>Rn<\/strong>), and the second string contains the ordered characters from&nbsp;<strong><em>S<\/em><\/strong>&#8216;s&nbsp;<em>odd<\/em>&nbsp;indices (<strong>ak<\/strong>).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Day_6_Lets_Review\"><\/span><strong>Solution &#8211; Day 6: Let&#8217;s Review<\/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;cmath>\n#include &lt;cstdio>\n#include &lt;vector>\n#include &lt;iostream>\n#include &lt;algorithm>\nusing namespace std;\n\nint main() \n{\n    \/* Enter your code here. Read input from STDIN. Print output to STDOUT *\/   \n\n    int N;\n    cin >> N;\n\n    for (int i = 0; i &lt; N; i++) \n    {\n        string str;\n        cin >> str;\n\n        for (int j = 0; j &lt; str.length(); j++) \n        {\n            if (j % 2 == 0)\n            {\n                cout &lt;&lt; str[j];\n            }\n        }\n\n        cout &lt;&lt; \" \";\n\n        for (int j = 0; j &lt; str.length(); j++) \n        {\n            if (j % 2 != 0)\n            {\n                cout &lt;&lt; str[j];\n            }\n        }\n\n        cout &lt;&lt; endl;\n    }\n\n    return 0;\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<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Java\"><\/span><strong>Java<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"java\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import java.io.*;\nimport java.util.*;\nimport java.text.*;\nimport java.math.*;\nimport java.util.regex.*;\n\npublic class Solution {\n    public static void main(String[] args) \n    {\n        Scanner in = new Scanner(System.in);\n        int N = in.nextInt();\n\n        in.nextLine();\n\n        for (int i = 0; i &lt; N; i++) \n        {\n            String string = in.nextLine();\n            char[] charArray = string.toCharArray();\n\n            for (int j = 0; j &lt; charArray.length; j++) \n            {\n                if (j % 2 == 0) \n                {\n                    System.out.print(charArray[j]);\n                }\n            }\n\n            System.out.print(\" \");\n\n            for (int j = 0; j &lt; charArray.length; j++) \n            {\n                if (j % 2 != 0) \n                {\n                    System.out.print(charArray[j]);\n                }\n            }\n\n            System.out.println();\n        }\n\n        in.close();\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Python\"><\/span><strong>Python<\/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=\"\"># Enter your code here. Read input from STDIN. Print output to STDOUT\nT = int(input())\nfor i in range (0 , T):\n    S = input()\n    print(S[0::2] + \" \" + S[1::2])<\/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\/30-review-loop\/problem\" target=\"_blank\" rel=\"noreferrer noopener\" class=\"rank-math-link\">Day 6: Let&#8217;s Review<\/a>)<\/strong> is generated by <strong>Hacker Rank<\/strong> but the Solution in 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 Day 6: Let&#8217;s Review HackerRank Solution in C++, Java and Python.<\/p>\n","protected":false},"author":1,"featured_media":1924,"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":[9,160],"tags":[171,80,18],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/05\/day-6-lets-review-30-days-of-code-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1921"}],"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=1921"}],"version-history":[{"count":4,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1921\/revisions"}],"predecessor-version":[{"id":3519,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/1921\/revisions\/3519"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/1924"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=1921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=1921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=1921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}