{"id":6634,"date":"2022-06-29T23:10:00","date_gmt":"2022-06-29T17:40:00","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=6634"},"modified":"2022-06-20T17:01:21","modified_gmt":"2022-06-20T11:31:21","slug":"encryption-hackerrank-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/encryption-hackerrank-solution\/","title":{"rendered":"Encryption &#8211; HackerRank Solution"},"content":{"rendered":"\n<p>In this post, we will solve <strong>Encryption HackerRank Solution<\/strong>. This problem <strong>(Encryption)<\/strong> is a part of <strong>HackerRank Algorithms<\/strong> series.<\/p>\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-662c43bd3c93f\" 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-662c43bd3c93f\" 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\/encryption-hackerrank-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-2\" href=\"https:\/\/www.codingbroz.com\/encryption-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\/encryption-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\/encryption-hackerrank-solution\/#Solution_%E2%80%93_Encryption_%E2%80%93_HackerRank_Solution\" title=\"Solution &#8211; Encryption &#8211; HackerRank Solution\">Solution &#8211; Encryption &#8211; HackerRank Solution<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.codingbroz.com\/encryption-hackerrank-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-6\" href=\"https:\/\/www.codingbroz.com\/encryption-hackerrank-solution\/#Python\" title=\"Python\">Python<\/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\/encryption-hackerrank-solution\/#Java\" title=\"Java\">Java<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\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>An English text needs to be encrypted using the following encryption scheme.<br>First, the spaces are removed from the text. Let\u00a0<em><strong>L<\/strong><\/em>\u00a0be the length of this text.<br>Then, characters are written into a grid, whose rows and columns have the following constraints:<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>[\u221aL] &lt;= row &lt;= column &lt;= [\u221aL] , where [x] is the floor function and [x] is ceil function<\/strong><\/p>\n\n\n\n<p><strong>Example<\/strong><\/p>\n\n\n\n<p><strong><em>s<\/em> = if man was meant to stay on the ground god would have given us roots<\/strong> <\/p>\n\n\n\n<p>After removing spaces, the string is\u00a0<strong>54<\/strong>\u00a0characters long.\u00a0<strong>\u221a54<\/strong>\u00a0is between\u00a0<strong>7<\/strong>\u00a0and\u00a0<strong>8<\/strong>, so it is written in the form of a grid with 7 rows and 8 columns.<\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>ifmanwas  \r\nmeanttos          \r\ntayonthe  \r\ngroundgo  \r\ndwouldha  \r\nvegivenu  \r\nsroots<\/code><\/pre>\n\n\n\n<ul><li>Ensure that\u00a0<strong><em>rows<\/em> x <em>columns<\/em> >= <em>L<\/em><\/strong><\/li><li>If multiple grids satisfy the above conditions, choose the one with the minimum area, i.e.\u00a0<strong><em>rows<\/em> x <em>columns<\/em><\/strong>.<\/li><\/ul>\n\n\n\n<p>The encoded message is obtained by displaying the characters of each column, with a space between column texts. The encoded message for the grid above is:<\/p>\n\n\n\n<p><code>imtgdvs fearwer mayoogo anouuio ntnnlvt wttddes aohghn sseoau<\/code><\/p>\n\n\n\n<p>Create a function to encode a message.<\/p>\n\n\n\n<p><strong>Function Description<\/strong><\/p>\n\n\n\n<p>Complete the&nbsp;<em>encryption<\/em>&nbsp;function in the editor below.<\/p>\n\n\n\n<p>encryption has the following parameter(s):<\/p>\n\n\n\n<ul><li><em>string s:<\/em>&nbsp;a string to encrypt<\/li><\/ul>\n\n\n\n<p><strong>Returns<\/strong><\/p>\n\n\n\n<ul><li><em>string:<\/em>\u00a0the encrypted string<\/li><\/ul>\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>One line of text, the string\u00a0<em><strong>s<\/strong><\/em><\/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>length of s<\/em> &lt;= 81<\/strong><\/li><li><em><strong>s<\/strong><\/em>\u00a0contains characters in the range ascii[a-z] and space, ascii(32).<\/li><\/ul>\n\n\n\n<p><strong>Sample Input 0<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>haveaniceday<\/code><\/pre>\n\n\n\n<p><strong>Sample Output 0<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>hae and via ecy<\/code><\/pre>\n\n\n\n<p><strong>Explanation 0<\/strong><\/p>\n\n\n\n<p><strong>L = 12,\u00a0\u221a12<\/strong>\u00a0is between\u00a0<strong>3<\/strong>\u00a0and\u00a0<strong>4<\/strong>.<br>Rewritten with\u00a0<strong>3<\/strong>\u00a0rows and\u00a0<strong>4<\/strong>\u00a0columns:<\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>have\r\nanic\r\neday<\/code><\/pre>\n\n\n\n<p><strong>Sample Input 1<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>feedthedog    <\/code><\/pre>\n\n\n\n<p><strong>Sample Output 1<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>fto ehg ee dd<\/code><\/pre>\n\n\n\n<p><strong>Explanation 1<\/strong><\/p>\n\n\n\n<p><strong>L = 10,\u00a0\u221a10<\/strong>\u00a0is between\u00a0<strong>3<\/strong>\u00a0and\u00a0<strong>4<\/strong>.<br>Rewritten with\u00a0<strong>3<\/strong>\u00a0rows and\u00a0<strong>4<\/strong>\u00a0columns:<\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>feed\r\nthed\r\nog<\/code><\/pre>\n\n\n\n<p><strong>Sample Input 2<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>chillout<\/code><\/pre>\n\n\n\n<p><strong>Sample Output 2<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-ast-global-color-5-color has-ast-global-color-8-background-color has-text-color has-background\"><code>clu hlt io<\/code><\/pre>\n\n\n\n<p><strong>Explanation 2<\/strong><\/p>\n\n\n\n<p><strong>L = 8,\u00a0\u221a8<\/strong>\u00a0is between\u00a0<strong>2<\/strong>\u00a0and\u00a0<strong>3<\/strong>.<br>Rewritten with\u00a0<strong>3<\/strong>\u00a0columns and\u00a0<strong>3<\/strong> rows\u00a0(<strong>2 * 3 = 6 &lt; 8<\/strong>\u00a0so we have to use\u00a0<strong>3 X 3<\/strong>.)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Encryption_%E2%80%93_HackerRank_Solution\"><\/span><strong>Solution &#8211; Encryption &#8211; HackerRank 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=\"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;cstring>\n#include &lt;iostream>\n#include &lt;cstdio>\n#include &lt;vector>\n#include &lt;algorithm>\n\nusing namespace std;\n\n#define MAXN 1000\nchar str[MAXN];\nchar res[MAXN][MAXN];\nint gr,gc;\nint r,c;\n\nint main(){\n   scanf(\"%s\",str);\n   int len = strlen(str); int DIFF = 1&lt;&lt;20; int AREA = 1&lt;&lt;20;\n   for(int i=1; i&lt;=100; ++i) {\n     if(i*i>=len) {\n         r = i; c = i; break;\n     }     \n     if(i*(i+1)>=len){\n         r = i; c = i+1; break;\n     }\n   }\n   int id = 0;\n   for(int i=0; i&lt;MAXN; ++i) for(int j=0; j&lt;MAXN; ++j) res[i][j] = '\\0';\n   for(int i=0; i&lt;r; ++i) for(int j=0; j&lt;c; ++j) res[i][j] = str[id++];\n   for(int i=0; i&lt;c; ++i) {\n      for(int j=0; res[j][i]!='\\0'; ++j) printf(\"%c\",res[j][i]);\n      printf(\" \");\n   } \n   \n   return 0;\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=\"\">#!\/bin\/python3\n\nimport sys\nfrom math import sqrt\nfrom math import ceil\n\ndef get_grid(number):\n    root = sqrt(number)\n    \n    x = int(root\/\/1)\n    y = ceil(root)\n    \n    while x*y &lt; number:\n        if x &lt;= y:\n            x += 1\n        else:\n            y += 1\n        \n    return (x, y)\n\ndef encryption(string):\n    string = string.strip().replace(' ', '')\n    str_len = len(string)\n    \n    x, y = get_grid(str_len)\n    #print(\"x = {} y = {}\".format(x, y))\n    grid = [ [ '' for i in range(x) ] for _j in range(y) ]\n    \n    count = 0\n    x_ind = 0\n    y_ind = 0\n    for ind in range(str_len):\n        if count \/ y == 1 and count % y == 0:\n            count = 0\n            y_ind += 1\n            x_ind = 0\n            \n        grid[x_ind][y_ind] = string[ind]\n        count += 1\n        x_ind += 1\n        \n    #print(grid)\n    out = ''\n    for _i in range(y):\n        for _j in range(x):\n            out += grid[_i][_j]\n        out += ' '\n    #print(out)\n        \n    #out = ''\n    #for _i in range(y):\n    #    for _j in range(x):\n    #        out += grid[_i][_j]\n    #    out += ' '\n\n    return out\n        \nif __name__ == \"__main__\":\n    s = input().strip()\n    result = encryption(s)\n    print(result)\n<\/pre>\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.util.Scanner;\n\n\npublic class Solution {\n\n    \n    public static void main(String[] args) {\n        Scanner scan= new Scanner(System.in);\n        String s= scan.next();\n        int wid,len;\n        int l=s.length();\n        double f=Math.sqrt(l);\n        int test=(int)f;\n        if(test*test==l){\n            wid=test;\n            len=test;\n        }else{\n        wid=test;\n        len=test+1;\n        if(wid*len&lt;l)\n            wid++;\n        }\n        int a=0;\n        char arr[][] = new char[wid][len];\n        for(int i=0;i&lt;wid;i++){\n            for(int j=0;j&lt;len;j++){\n                if(a==s.length())\n                    arr[i][j]=' ';\n                else\n                arr[i][j]=s.charAt(a++);\n                \n            }\n            if(a==s.length())\n                break;\n        }\n        String temp=\"\";\n        boolean go=false;\n        for(int i=0;i&lt;len;i++){\n            for(int j=0;j&lt;wid;j++){\n                if(!(arr[j][i]==' ')){\n                temp=temp+arr[j][i];\n                go=true;\n                }\n            }\n            if(go)\n                temp=temp+\" \";\n            go=false;\n        }\n        System.out.println(temp);\n    }\n\n}\n<\/pre>\n\n\n\n<p><strong>Note:<\/strong> This problem <strong>(<a href=\"https:\/\/www.hackerrank.com\/challenges\/encryption\/problem\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Encryption<\/a>)<\/strong> is generated by <strong><a href=\"https:\/\/www.hackerrank.com\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">HackerRank<\/a><\/strong> but the solution is provided by <strong><a href=\"https:\/\/www.codingbroz.com\/\">CodingBroz<\/a><\/strong>. This tutorial is only for <strong>Educational<\/strong> and <strong>Learning<\/strong> purpose.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this post, we will solve Encryption HackerRank Solution. This problem (Encryption) is a part of HackerRank Algorithms series.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","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":"","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":[9,190],"tags":[191],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/6634"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/comments?post=6634"}],"version-history":[{"count":6,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/6634\/revisions"}],"predecessor-version":[{"id":6642,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/6634\/revisions\/6642"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=6634"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=6634"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=6634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}