mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-11 02:58:13 +08:00
175 lines
17 KiB
JSON
175 lines
17 KiB
JSON
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"question": {
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"questionFrontendId": "2287",
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"boundTopicId": null,
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"title": "Rearrange Characters to Make Target String",
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"titleSlug": "rearrange-characters-to-make-target-string",
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"content": "<p>You are given two <strong>0-indexed</strong> strings <code>s</code> and <code>target</code>. You can take some letters from <code>s</code> and rearrange them to form new strings.</p>\n\n<p>Return<em> the <strong>maximum</strong> number of copies of </em><code>target</code><em> that can be formed by taking letters from </em><code>s</code><em> and rearranging them.</em></p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "ilovecodingonleetcode", target = "code"\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\nFor the first copy of "code", take the letters at indices 4, 5, 6, and 7.\nFor the second copy of "code", take the letters at indices 17, 18, 19, and 20.\nThe strings that are formed are "ecod" and "code" which can both be rearranged into "code".\nWe can make at most two copies of "code", so we return 2.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "abcba", target = "abc"\n<strong>Output:</strong> 1\n<strong>Explanation:</strong>\nWe can make one copy of "abc" by taking the letters at indices 0, 1, and 2.\nWe can make at most one copy of "abc", so we return 1.\nNote that while there is an extra 'a' and 'b' at indices 3 and 4, we cannot reuse the letter 'c' at index 2, so we cannot make a second copy of "abc".\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "abbaccaddaeea", target = "aaaaa"\n<strong>Output:</strong> 1\n<strong>Explanation:</strong>\nWe can make one copy of "aaaaa" by taking the letters at indices 0, 3, 6, 9, and 12.\nWe can make at most one copy of "aaaaa", so we return 1.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= s.length <= 100</code></li>\n\t<li><code>1 <= target.length <= 10</code></li>\n\t<li><code>s</code> and <code>target</code> consist of lowercase English letters.</li>\n</ul>\n",
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"difficulty": "Easy",
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"exampleTestcases": "\"ilovecodingonleetcode\"\n\"code\"\n\"abcba\"\n\"abc\"\n\"abbaccaddaeea\"\n\"aaaaa\"",
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"categoryTitle": "Algorithms",
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"name": "Hash Table",
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"name": "String",
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"slug": "string",
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"name": "Counting",
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"slug": "counting",
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"lang": "C++",
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"langSlug": "cpp",
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"code": "class Solution {\npublic:\n int rearrangeCharacters(string s, string target) {\n \n }\n};",
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"lang": "Java",
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"code": "class Solution {\n public int rearrangeCharacters(String s, String target) {\n \n }\n}",
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"lang": "Python",
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"langSlug": "python",
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"code": "class Solution(object):\n def rearrangeCharacters(self, s, target):\n \"\"\"\n :type s: str\n :type target: str\n :rtype: int\n \"\"\"\n ",
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"langSlug": "python3",
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"code": "class Solution:\n def rearrangeCharacters(self, s: str, target: str) -> int:\n ",
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"code": "\n\nint rearrangeCharacters(char * s, char * target){\n\n}",
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"lang": "C#",
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"langSlug": "csharp",
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"code": "public class Solution {\n public int RearrangeCharacters(string s, string target) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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"lang": "JavaScript",
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"langSlug": "javascript",
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"code": "/**\n * @param {string} s\n * @param {string} target\n * @return {number}\n */\nvar rearrangeCharacters = function(s, target) {\n \n};",
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"lang": "Ruby",
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"langSlug": "ruby",
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"code": "# @param {String} s\n# @param {String} target\n# @return {Integer}\ndef rearrange_characters(s, target)\n \nend",
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"lang": "Swift",
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"langSlug": "swift",
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"code": "class Solution {\n func rearrangeCharacters(_ s: String, _ target: String) -> Int {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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"lang": "Go",
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"langSlug": "golang",
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"code": "func rearrangeCharacters(s string, target string) int {\n \n}",
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"lang": "Scala",
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"langSlug": "scala",
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"code": "object Solution {\n def rearrangeCharacters(s: String, target: String): Int = {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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"lang": "Kotlin",
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"langSlug": "kotlin",
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"code": "class Solution {\n fun rearrangeCharacters(s: String, target: String): Int {\n \n }\n}",
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"lang": "Rust",
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"langSlug": "rust",
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"code": "impl Solution {\n pub fn rearrange_characters(s: String, target: String) -> i32 {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "PHP",
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"langSlug": "php",
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"code": "class Solution {\n\n /**\n * @param String $s\n * @param String $target\n * @return Integer\n */\n function rearrangeCharacters($s, $target) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "TypeScript",
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"langSlug": "typescript",
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"code": "function rearrangeCharacters(s: string, target: string): number {\n\n};",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Racket",
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"langSlug": "racket",
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"code": "(define/contract (rearrange-characters s target)\n (-> string? string? exact-integer?)\n\n )",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "-spec rearrange_characters(S :: unicode:unicode_binary(), Target :: unicode:unicode_binary()) -> integer().\nrearrange_characters(S, Target) ->\n .",
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"__typename": "CodeSnippetNode"
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{
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"lang": "Elixir",
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"langSlug": "elixir",
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"code": "defmodule Solution do\n @spec rearrange_characters(s :: String.t, target :: String.t) :: integer\n def rearrange_characters(s, target) do\n\n end\nend",
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"__typename": "CodeSnippetNode"
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}
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],
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"stats": "{\"totalAccepted\": \"19.2K\", \"totalSubmission\": \"33.4K\", \"totalAcceptedRaw\": 19196, \"totalSubmissionRaw\": 33352, \"acRate\": \"57.6%\"}",
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"hints": [
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"Count the frequency of each character in s and target.",
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"Consider each letter one at a time. If there are x occurrences of a letter in s and y occurrences of the same letter in target, how many copies of this letter can we make?",
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"We can make floor(x / y) copies of the letter."
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],
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"solution": null,
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"status": null,
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"sampleTestCase": "\"ilovecodingonleetcode\"\n\"code\"",
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"metaData": "{\n \"name\": \"rearrangeCharacters\",\n \"params\": [\n {\n \"name\": \"s\",\n \"type\": \"string\"\n },\n {\n \"type\": \"string\",\n \"name\": \"target\"\n }\n ],\n \"return\": {\n \"type\": \"integer\"\n }\n}",
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"judgerAvailable": true,
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"judgeType": "large",
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"enableTestMode": false,
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"enableDebugger": true,
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"envInfo": "{\"cpp\": [\"C++\", \"<p>Compiled with <code> clang 11 </code> using the latest C++ 17 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level two optimization (<code>-O2</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>\"], \"java\": [\"Java\", \"<p><code> OpenJDK 17 </code>. 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 gnu99 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. Adding an item to a hash.</b>\\r\\n<pre>\\r\\nstruct hash_entry {\\r\\n int id; /* we'll use this field as the key */\\r\\n char name[10];\\r\\n UT_hash_handle hh; /* makes this structure hashable */\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>2. Looking up an item in a hash:</b>\\r\\n<pre>\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n struct hash_entry *s;\\r\\n HASH_FIND_INT(users, &user_id, s);\\r\\n return s;\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>3. Deleting an item in a hash:</b>\\r\\n<pre>\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n HASH_DEL(users, user); \\r\\n}\\r\\n</pre>\\r\\n</p>\"], \"csharp\": [\"C#\", \"<p><a href=\\\"https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-9\\\" target=\\\"_blank\\\">C# 10 with .NET 6 runtime</a></p>\\r\\n\\r\\n<p>Your code is compiled with debug flag enabled (<code>/debug</code>).</p>\"], \"javascript\": [\"JavaScript\", \"<p><code>Node.js 16.13.2</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES6 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\\r\\n\\r\\n<p>For Priority Queue / Queue data structures, you may use <a href=\\\"https://github.com/datastructures-js/priority-queue\\\" target=\\\"_blank\\\">datastructures-js/priority-queue</a> and <a href=\\\"https:
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