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construct-string-with-repeat-limit.json
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{
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"question": {
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"title": "Construct String With Repeat Limit",
"titleSlug": "construct-string-with-repeat-limit",
"content": "<p>You are given a string <code>s</code> and an integer <code>repeatLimit</code>. Construct a new string <code>repeatLimitedString</code> using the characters of <code>s</code> such that no letter appears <strong>more than</strong> <code>repeatLimit</code> times <strong>in a row</strong>. You do <strong>not</strong> have to use all characters from <code>s</code>.</p>\n\n<p>Return <em>the <strong>lexicographically largest</strong> </em><code>repeatLimitedString</code> <em>possible</em>.</p>\n\n<p>A string <code>a</code> is <strong>lexicographically larger</strong> than a string <code>b</code> if in the first position where <code>a</code> and <code>b</code> differ, string <code>a</code> has a letter that appears later in the alphabet than the corresponding letter in <code>b</code>. If the first <code>min(a.length, b.length)</code> characters do not differ, then the longer string is the lexicographically larger one.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "cczazcc", repeatLimit = 3\n<strong>Output:</strong> "zzcccac"\n<strong>Explanation:</strong> We use all of the characters from s to construct the repeatLimitedString "zzcccac".\nThe letter 'a' appears at most 1 time in a row.\nThe letter 'c' appears at most 3 times in a row.\nThe letter 'z' appears at most 2 times in a row.\nHence, no letter appears more than repeatLimit times in a row and the string is a valid repeatLimitedString.\nThe string is the lexicographically largest repeatLimitedString possible so we return "zzcccac".\nNote that the string "zzcccca" is lexicographically larger but the letter 'c' appears more than 3 times in a row, so it is not a valid repeatLimitedString.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "aababab", repeatLimit = 2\n<strong>Output:</strong> "bbabaa"\n<strong>Explanation:</strong> We use only some of the characters from s to construct the repeatLimitedString "bbabaa". \nThe letter 'a' appears at most 2 times in a row.\nThe letter 'b' appears at most 2 times in a row.\nHence, no letter appears more than repeatLimit times in a row and the string is a valid repeatLimitedString.\nThe string is the lexicographically largest repeatLimitedString possible so we return "bbabaa".\nNote that the string "bbabaaa" is lexicographically larger but the letter 'a' appears more than 2 times in a row, so it is not a valid repeatLimitedString.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= repeatLimit <= s.length <= 10<sup>5</sup></code></li>\n\t<li><code>s</code> consists of lowercase English letters.</li>\n</ul>\n",
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"lang": "C++",
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"code": "class Solution {\npublic:\n string repeatLimitedString(string s, int repeatLimit) {\n \n }\n};",
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"code": "class Solution {\n public String repeatLimitedString(String s, int repeatLimit) {\n \n }\n}",
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"lang": "Python",
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"code": "class Solution(object):\n def repeatLimitedString(self, s, repeatLimit):\n \"\"\"\n :type s: str\n :type repeatLimit: int\n :rtype: str\n \"\"\"\n ",
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"code": "char* repeatLimitedString(char* s, int repeatLimit) {\n \n}",
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"code": "public class Solution {\n public string RepeatLimitedString(string s, int repeatLimit) {\n \n }\n}",
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"lang": "JavaScript",
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"code": "/**\n * @param {string} s\n * @param {number} repeatLimit\n * @return {string}\n */\nvar repeatLimitedString = function(s, repeatLimit) {\n \n};",
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"code": "function repeatLimitedString(s: string, repeatLimit: number): string {\n \n};",
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"code": "class Solution {\n\n /**\n * @param String $s\n * @param Integer $repeatLimit\n * @return String\n */\n function repeatLimitedString($s, $repeatLimit) {\n \n }\n}",
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"code": "class Solution {\n func repeatLimitedString(_ s: String, _ repeatLimit: Int) -> String {\n \n }\n}",
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"code": "class Solution {\n fun repeatLimitedString(s: String, repeatLimit: Int): String {\n \n }\n}",
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"code": "class Solution {\n String repeatLimitedString(String s, int repeatLimit) {\n \n }\n}",
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"code": "func repeatLimitedString(s string, repeatLimit int) string {\n \n}",
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"lang": "Ruby",
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"code": "# @param {String} s\n# @param {Integer} repeat_limit\n# @return {String}\ndef repeat_limited_string(s, repeat_limit)\n \nend",
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"lang": "Rust",
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"code": "impl Solution {\n pub fn repeat_limited_string(s: String, repeat_limit: i32) -> String {\n \n }\n}",
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"code": "(define/contract (repeat-limited-string s repeatLimit)\n (-> string? exact-integer? string?)\n )",
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"code": "-spec repeat_limited_string(S :: unicode:unicode_binary(), RepeatLimit :: integer()) -> unicode:unicode_binary().\nrepeat_limited_string(S, RepeatLimit) ->\n .",
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"code": "defmodule Solution do\n @spec repeat_limited_string(s :: String.t, repeat_limit :: integer) :: String.t\n def repeat_limited_string(s, repeat_limit) do\n \n end\nend",
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"hints": [
"Start constructing the string in descending order of characters.",
"When repeatLimit is reached, pick the next largest character."
],
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"sampleTestCase": "\"cczazcc\"\n3",
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Java 8 features such as lambda expressions and stream API can be used. </p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>\"], \"python\": [\"Python\", \"<p><code>Python 2.7.12</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/2/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/2/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/2/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\\r\\n\\r\\n<p>Note that Python 2.7 <a href=\\\"https://www.python.org/dev/peps/pep-0373/\\\" target=\\\"_blank\\\">will not be maintained past 2020</a>. For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu11 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. 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