{"id":359,"date":"2021-01-28T21:09:10","date_gmt":"2021-01-28T15:39:10","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=359"},"modified":"2021-06-21T11:27:19","modified_gmt":"2021-06-21T05:57:19","slug":"vector-erase-hackerrank-solution-in-cpp","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/vector-erase-hackerrank-solution-in-cpp\/","title":{"rendered":"Vector Erase In C++ | HackerRank Solution"},"content":{"rendered":"\n<p>Today we will be <strong>Vector Erase HackerRank Solution in C++<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1167\" height=\"675\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-erase-in-c-hackerrank-solution-codingbroz.png\" alt=\"Vector Erase HackerRank Solution In C++\" class=\"wp-image-363\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-erase-in-c-hackerrank-solution-codingbroz.png 1167w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-erase-in-c-hackerrank-solution-codingbroz-768x444.png 768w\" sizes=\"(max-width: 1167px) 100vw, 1167px\" \/><\/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-6636a4e196768\" 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-6636a4e196768\" 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\/vector-erase-hackerrank-solution-in-cpp\/#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\/vector-erase-hackerrank-solution-in-cpp\/#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\/vector-erase-hackerrank-solution-in-cpp\/#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\/vector-erase-hackerrank-solution-in-cpp\/#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\/vector-erase-hackerrank-solution-in-cpp\/#Solution_%E2%80%93_Vector_Erase_HackerRank_Solution_in_C\" title=\"Solution &#8211; Vector Erase HackerRank Solution in C++\">Solution &#8211; Vector Erase HackerRank Solution in C++<\/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>You are provided with a vector of N integers. Then, you are given 2 queries. For the first query, you are provided with 1 integer, which denotes a position in the vector. The value at this position in the vector needs to be erased. The next query consists of 2 integers denoting a range of the positions in the vector. The elements which fall under that range should be removed. The second query is performed on the updated vector which we get after performing the first query.<\/p>\n\n\n\n<p>The following are some useful vector functions:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>erase(int position):\n<\/code><\/pre>\n\n\n\n<p>Removes the element present at position.&nbsp;&nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;Ex: v.erase(v.begin()+4); (erases the fifth element of the vector v)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>erase(int start,int end):\n<\/code><\/pre>\n\n\n\n<p>Removes the elements in the range from start to end inclusive of the start and exclusive of the end.<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;Ex:v.erase(v.begin()+2,v.begin()+5);(erases all the elements from the third element to the fifth element.)<\/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 of the input contains an integer N.The next line contains N space separated integers(1-based index).The third line contains a single integer x ,denoting the position of an element that should be removed from the vector.The fourth line contains two integers a and b denoting the range that should be erased from the vector inclusive of a and exclusive of b.<\/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>1 &lt;= N &lt;= 10<sup>5<\/sup><\/p>\n\n\n\n<p>1 &lt;= x &lt;= N<\/p>\n\n\n\n<p>1 &lt;= a &lt; b &lt;=N<\/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>Print the size of the vector in the first line and the elements of the vector after the two erase operations in the second line separated by space.<\/p>\n\n\n\n<p><strong>Sample Input<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>6\n1 4 6 2 8 9\n2\n2 4\n<\/code><\/pre>\n\n\n\n<p><strong>Sample Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3\n1 8 9\n<\/code><\/pre>\n\n\n\n<p><strong>Explanation<\/strong><\/p>\n\n\n\n<p>The first query is to erase the 2nd element in the vector, which is 4. Then, the modified vector is {1 6 2 8 9}, we want to remove the range of 2~4, which means the 2nd and 3rd elements should be removed. Then 6 and 2 in the modified vector are removed and we finally get {1 8 9}.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solution_%E2%80%93_Vector_Erase_HackerRank_Solution_in_C\"><\/span><strong>Solution &#8211; Vector Erase HackerRank Solution in C++<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\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\n\nint main() {\n    \/* Enter your code here. Read input from STDIN. Print output to STDOUT *\/   \n    int n,x,y,a,b;\n    vector&lt;int> v;\n     cin >> n;\n    for(int i=0;i&lt;n;i++)\n    {\n        cin>>x;\n        v.push_back(x);\n    }\n    cin >> y >> a >> b;\n    v.erase(v.begin()+y-1);\n    v.erase(v.begin()+a-1,v.begin()+b-1);\n    cout &lt;&lt; v.size() &lt;&lt; '\\n';\n    for(int i=0 ; i&lt;v.size() ;i++)\n    {\n        cout &lt;&lt; v[i] &lt;&lt; ' ';\n    }\n    return 0;\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<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1430\" height=\"880\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-sort-in-c-hackerrank-solution-1.png\" alt=\"Vector Erase HackerRank Solution In C++\" class=\"wp-image-360\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-sort-in-c-hackerrank-solution-1.png 1430w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-sort-in-c-hackerrank-solution-1-768x473.png 768w\" sizes=\"(max-width: 1430px) 100vw, 1430px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1430\" height=\"901\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-sort-in-c-hackerrank-solution-result-1.png\" alt=\"Vector Erase HackerRank Solution In C++\" class=\"wp-image-361\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-sort-in-c-hackerrank-solution-result-1.png 1430w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-sort-in-c-hackerrank-solution-result-1-768x484.png 768w\" sizes=\"(max-width: 1430px) 100vw, 1430px\" \/><\/figure>\n\n\n\n<p><strong>Disclaimer:<\/strong> The above Problem (<strong><a href=\"https:\/\/www.hackerrank.com\/challenges\/vector-erase\/problem\" target=\"_blank\" aria-label=\"Vector Erase in C++ (opens in a new tab)\" rel=\"noreferrer noopener nofollow\" class=\"rank-math-link\">Vector Erase in C++<\/a><\/strong>) is generated by <strong><a href=\"https:\/\/www.hackerrank.com\/\" target=\"_blank\" aria-label=\"Hacker Rank (opens in a new tab)\" rel=\"noreferrer noopener\" class=\"rank-math-link\">Hacker Rank<\/a><\/strong> but the Solution is provided by <strong><a href=\"https:\/\/www.codingbroz.com\/\" class=\"rank-math-link\">CodingBroz<\/a><\/strong>.<\/p>\n\n\n\n<p><strong>Broz Who Code<\/strong><\/p>\n\n\n\n<p><strong>CodingBroz<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today we will be Vector Erase HackerRank Solution in C++. Objective You are provided with a vector of N integers. Then, you are given 2 queries. For the first query, you are provided with 1 integer, which denotes a position in the vector. The value at this position in the vector needs to be erased. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":363,"comment_status":"open","ping_status":"open","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":[22,80,81,18],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/01\/vector-erase-in-c-hackerrank-solution-codingbroz.png","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/359"}],"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=359"}],"version-history":[{"count":4,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/359\/revisions"}],"predecessor-version":[{"id":3565,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/posts\/359\/revisions\/3565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media\/363"}],"wp:attachment":[{"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/media?parent=359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/categories?post=359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingbroz.com\/wp-json\/wp\/v2\/tags?post=359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}