{"id":2930,"date":"2021-06-07T19:24:10","date_gmt":"2021-06-07T13:54:10","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=2930"},"modified":"2021-06-07T19:24:18","modified_gmt":"2021-06-07T13:54:18","slug":"transform-the-expression-codechef-solution","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/transform-the-expression-codechef-solution\/","title":{"rendered":"Transform The Expression | CodeChef Solution"},"content":{"rendered":"\n<p>Hello coders, today we are going to solve <strong>Transform the Expression CodeChef Solution<\/strong> whose Problem Code is <strong>ONP<\/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\/06\/transform-the-expression-codechef-solution-codingbroz.png\" alt=\"Transform The Expression\" class=\"wp-image-2932\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/06\/transform-the-expression-codechef-solution-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/06\/transform-the-expression-codechef-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-6635d660e6b10\" 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-6635d660e6b10\" 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\/transform-the-expression-codechef-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\/transform-the-expression-codechef-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\/transform-the-expression-codechef-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-4\" href=\"https:\/\/www.codingbroz.com\/transform-the-expression-codechef-solution\/#Solution_%E2%80%93_Transform_The_Expression\" title=\"Solution &#8211; Transform The Expression \">Solution &#8211; Transform The Expression <\/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\/transform-the-expression-codechef-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\/transform-the-expression-codechef-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\/transform-the-expression-codechef-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>Reverse Polish Notation (RPN) is a mathematical notation where every operator follows all of its operands. For instance, to add three and four, one would write &#8220;3 4 +&#8221; rather than &#8220;3 + 4&#8221;. If there are multiple operations, the operator is given immediately after its second operand; so the expression written &#8220;3 \u2212 4 + 5&#8221; would be written &#8220;3 4 \u2212 5 +&#8221; first subtract 4 from 3, then add 5 to that.<\/p>\n\n\n\n<p>Transform the algebraic expression with brackets into RPN form.<\/p>\n\n\n\n<p>You can assume that for the test cases below only single letters will be used, brackets [] will not be used and each expression has only one RPN form (no expressions like a*b*c)<\/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 t, the number of test cases (less then 100).<\/p>\n\n\n\n<p>Followed by t lines, containing an expression to be translated to RPN form, where the length of the expression is less then 400.<\/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>The expressions in RPN form, one per line.<\/p>\n\n\n\n<p><strong>Example<\/strong><\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3\r\n(a+(b*c))\r\n((a+b)*(z+x))\r\n((a+t)*((b+(a+c))^(c+d)))<\/code><\/pre>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>abc*+\r\nab+zx+*\r\nat+bac++cd+^*<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Transform_The_Expression\"><\/span><strong>Solution &#8211; Transform The Expression <\/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;bits\/stdc++.h>\nusing namespace std;\n\nint main() {\n\tint test;\n\tcin>>test;\n\twhile(test--)\n\t{\n\t    string s;\n\t    cin>>s;\n\t    vector &lt;char>v;\n\t    for(int i=0;i&lt;s.length();i++)\n\t    {\n\t        if(s[i]!=')'&amp;&amp;(isalpha(s[i])==0)&amp;&amp;s[i]!='(')\n\t        v.push_back(s[i]);\n\t        else if(s[i]!='('&amp;&amp;s[i]!=')')\n\t        cout&lt;&lt;s[i];\n\t        else if(s[i]==')')\n\t        {\n    \t        cout&lt;&lt;v.back();\n    \t        v.pop_back();\n\t        }\n\t    }\n\t    \/\/cout&lt;&lt;v[3];\n\t    \/*for (auto&amp; it : v) {\n  \n        \/\/ Print the values\n        cout &lt;&lt; it &lt;&lt;;\n        }*\/\n\t    cout&lt;&lt;\"\\n\";\n\t}\n\treturn 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=\"\"># cook your dish here\nfor _ in range(int(input())):\n    t = []\n    st = []\n    for i in input():\n        if i.isalpha():\n            t.append(i)\n        elif i == ')':\n            t.append(st.pop())\n        elif i == '(':\n            pass\n        else:\n            st.append(i)\n    print(\"\".join(t))<\/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=\"\">\/* package codechef; \/\/ don't place package name! *\/\n\nimport java.util.*;\nimport java.lang.*;\nimport java.io.*;\n\n\/* Name of the class has to be \"Main\" only if the class is public. *\/\nclass Codechef\n{\n\tpublic static void main (String[] args) throws java.lang.Exception\n\t{\n\t\tScanner s = new Scanner(System.in);\n\t\tint testCases = s.nextInt();\n\t\twhile( testCases-- > 0 ){\n\t\t    String expr = s.next();\n\t\t    \n\t\t    Stack&lt;Character> charStack = new Stack&lt;>();\n\t\t    \n\t\t    String validString = getPostFixExpr(charStack,expr);\n\t\t    System.out.println(validString);\n\t\t    \n\t\t}\n\t}\n\t\n\tpublic static int priority(char ch){\n\t    switch(ch) {\n\t        case '+':\n\t        case '-': return 1;\n\t        \n\t        case '*':\n\t        case '\/':return 2;\n\t        \n\t        case '^':return 3;\n\t            \n\t    }\n\t    return -1;\n\t}\n\t\n\tpublic static String getPostFixExpr( Stack&lt;Character> temp , String expr ){\n\t    String postfix = \"\";\n\t    \n\t    int i = 0;\n\t    while(i &lt; expr.length()){\n\t        if( expr.charAt(i) >= 'a' &amp;&amp; expr.charAt(i) &lt;= 'z' ){\n\t            postfix+=expr.charAt(i);\n\t        }else if( expr.charAt(i) == '(' ){\n\t            temp.push( expr.charAt(i) );\n\t        }else if( expr.charAt(i) == ')' ){\n\t            while( temp.peek() != '(' &amp;&amp; !temp.isEmpty() ){\n\t                postfix+= temp.pop();\n\t            }\n\t            \n\t            if( temp.peek() == '(' ){\n\t                temp.pop();\n\t            }\n\t        }else \n\t        {\n\t            while( ( priority(expr.charAt(i)) &lt;= priority(temp.peek() ) ) &amp;&amp; !temp.isEmpty() ){\n\t                postfix+=temp.pop();\n\t            }\n\t            \n\t            temp.push(expr.charAt(i));\n\t        }\n\t        i++;\n\t    }\n\t    return postfix;\n\t}\n}\n<\/pre>\n\n\n\n<p><strong>Disclaimer:<\/strong> The above Problem <strong>(<a href=\"https:\/\/www.codechef.com\/problems\/ONP\" target=\"_blank\" rel=\"noreferrer noopener\">Transform The Expression<\/a>) <\/strong>is generated by <strong>CodeChef <\/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 Transform the Expression CodeChef Solution whose Problem Code is ONP.<\/p>\n","protected":false},"author":1,"featured_media":2932,"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":[54],"tags":[55,137,56],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/06\/transform-the-expression-codechef-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/2930"}],"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=2930"}],"version-history":[{"count":3,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/2930\/revisions"}],"predecessor-version":[{"id":2934,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/2930\/revisions\/2934"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/2932"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=2930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=2930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=2930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}