mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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183 lines
18 KiB
JSON
183 lines
18 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "1281",
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"questionFrontendId": "1177",
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"boundTopicId": null,
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"title": "Can Make Palindrome from Substring",
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"titleSlug": "can-make-palindrome-from-substring",
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"content": "<p>You are given a string <code>s</code> and array <code>queries</code> where <code>queries[i] = [left<sub>i</sub>, right<sub>i</sub>, k<sub>i</sub>]</code>. We may rearrange the substring <code>s[left<sub>i</sub>...right<sub>i</sub>]</code> for each query and then choose up to <code>k<sub>i</sub></code> of them to replace with any lowercase English letter.</p>\n\n<p>If the substring is possible to be a palindrome string after the operations above, the result of the query is <code>true</code>. Otherwise, the result is <code>false</code>.</p>\n\n<p>Return a boolean array <code>answer</code> where <code>answer[i]</code> is the result of the <code>i<sup>th</sup></code> query <code>queries[i]</code>.</p>\n\n<p>Note that each letter is counted individually for replacement, so if, for example <code>s[left<sub>i</sub>...right<sub>i</sub>] = "aaa"</code>, and <code>k<sub>i</sub> = 2</code>, we can only replace two of the letters. Also, note that no query modifies the initial string <code>s</code>.</p>\n\n<p> </p>\n<p><strong>Example :</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "abcda", queries = [[3,3,0],[1,2,0],[0,3,1],[0,3,2],[0,4,1]]\n<strong>Output:</strong> [true,false,false,true,true]\n<strong>Explanation:</strong>\nqueries[0]: substring = "d", is palidrome.\nqueries[1]: substring = "bc", is not palidrome.\nqueries[2]: substring = "abcd", is not palidrome after replacing only 1 character.\nqueries[3]: substring = "abcd", could be changed to "abba" which is palidrome. Also this can be changed to "baab" first rearrange it "bacd" then replace "cd" with "ab".\nqueries[4]: substring = "abcda", could be changed to "abcba" which is palidrome.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "lyb", queries = [[0,1,0],[2,2,1]]\n<strong>Output:</strong> [false,true]\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= s.length, queries.length <= 10<sup>5</sup></code></li>\n\t<li><code>0 <= left<sub>i</sub> <= right<sub>i</sub> < s.length</code></li>\n\t<li><code>0 <= k<sub>i</sub> <= s.length</code></li>\n\t<li><code>s</code> consists of lowercase English letters.</li>\n</ul>\n",
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"translatedTitle": null,
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"translatedContent": null,
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"isPaidOnly": false,
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"difficulty": "Medium",
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"likes": 528,
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"dislikes": 225,
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"isLiked": null,
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"similarQuestions": "[{\"title\": \"Plates Between Candles\", \"titleSlug\": \"plates-between-candles\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]",
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"exampleTestcases": "\"abcda\"\n[[3,3,0],[1,2,0],[0,3,1],[0,3,2],[0,4,1]]\n\"lyb\"\n[[0,1,0],[2,2,1]]",
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"categoryTitle": "Algorithms",
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"contributors": [],
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"topicTags": [
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"name": "Hash Table",
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"name": "Bit Manipulation",
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"translatedName": null,
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"__typename": "TopicTagNode"
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},
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"name": "Prefix Sum",
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"slug": "prefix-sum",
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"lang": "C++",
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"langSlug": "cpp",
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"code": "class Solution {\npublic:\n vector<bool> canMakePaliQueries(string s, vector<vector<int>>& queries) {\n \n }\n};",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Java",
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"langSlug": "java",
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"code": "class Solution {\n public List<Boolean> canMakePaliQueries(String s, int[][] queries) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Python",
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"langSlug": "python",
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"code": "class Solution(object):\n def canMakePaliQueries(self, s, queries):\n \"\"\"\n :type s: str\n :type queries: List[List[int]]\n :rtype: List[bool]\n \"\"\"\n ",
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"__typename": "CodeSnippetNode"
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"lang": "Python3",
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"langSlug": "python3",
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"code": "class Solution:\n def canMakePaliQueries(self, s: str, queries: List[List[int]]) -> List[bool]:\n ",
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"__typename": "CodeSnippetNode"
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"lang": "C",
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"langSlug": "c",
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"code": "\n\n/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nbool* canMakePaliQueries(char * s, int** queries, int queriesSize, int* queriesColSize, int* returnSize){\n\n}",
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"lang": "C#",
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"langSlug": "csharp",
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"code": "public class Solution {\n public IList<bool> CanMakePaliQueries(string s, int[][] queries) {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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"code": "/**\n * @param {string} s\n * @param {number[][]} queries\n * @return {boolean[]}\n */\nvar canMakePaliQueries = function(s, queries) {\n \n};",
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"lang": "Ruby",
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"langSlug": "ruby",
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"code": "# @param {String} s\n# @param {Integer[][]} queries\n# @return {Boolean[]}\ndef can_make_pali_queries(s, queries)\n \nend",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Swift",
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"langSlug": "swift",
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"code": "class Solution {\n func canMakePaliQueries(_ s: String, _ queries: [[Int]]) -> [Bool] {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Go",
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"langSlug": "golang",
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"code": "func canMakePaliQueries(s string, queries [][]int) []bool {\n \n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Scala",
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"langSlug": "scala",
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"code": "object Solution {\n def canMakePaliQueries(s: String, queries: Array[Array[Int]]): List[Boolean] = {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Kotlin",
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"langSlug": "kotlin",
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"code": "class Solution {\n fun canMakePaliQueries(s: String, queries: Array<IntArray>): List<Boolean> {\n \n }\n}",
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"__typename": "CodeSnippetNode"
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},
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{
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"lang": "Rust",
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"langSlug": "rust",
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"code": "impl Solution {\n pub fn can_make_pali_queries(s: String, queries: Vec<Vec<i32>>) -> Vec<bool> {\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 Integer[][] $queries\n * @return Boolean[]\n */\n function canMakePaliQueries($s, $queries) {\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 canMakePaliQueries(s: string, queries: number[][]): boolean[] {\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 (can-make-pali-queries s queries)\n (-> string? (listof (listof exact-integer?)) (listof boolean?))\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 can_make_pali_queries(S :: unicode:unicode_binary(), Queries :: [[integer()]]) -> [boolean()].\ncan_make_pali_queries(S, Queries) ->\n .",
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"__typename": "CodeSnippetNode"
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},
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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 can_make_pali_queries(s :: String.t, queries :: [[integer]]) :: [boolean]\n def can_make_pali_queries(s, queries) 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\": \"20K\", \"totalSubmission\": \"53.5K\", \"totalAcceptedRaw\": 19971, \"totalSubmissionRaw\": 53480, \"acRate\": \"37.3%\"}",
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"hints": [
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"Since we can rearrange the substring, all we care about is the frequency of each character in that substring.",
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"How to find the character frequencies efficiently ?",
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"As a preprocess, calculate the accumulate frequency of all characters for all prefixes of the string.",
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"How to check if a substring can be changed to a palindrome given its characters frequency ?",
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"Count the number of odd frequencies, there can be at most one odd frequency in a palindrome."
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],
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"solution": null,
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"status": null,
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"sampleTestCase": "\"abcda\"\n[[3,3,0],[1,2,0],[0,3,1],[0,3,2],[0,4,1]]",
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"judgeType": "large",
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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>. 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