mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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187 lines
18 KiB
JSON
187 lines
18 KiB
JSON
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"question": {
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"questionId": "1080",
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"title": "Camelcase Matching",
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"titleSlug": "camelcase-matching",
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"content": "<p>Given an array of strings <code>queries</code> and a string <code>pattern</code>, return a boolean array <code>answer</code> where <code>answer[i]</code> is <code>true</code> if <code>queries[i]</code> matches <code>pattern</code>, and <code>false</code> otherwise.</p>\n\n<p>A query word <code>queries[i]</code> matches <code>pattern</code> if you can insert lowercase English letters pattern so that it equals the query. You may insert each character at any position and you may not insert any characters.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FB"\n<strong>Output:</strong> [true,false,true,true,false]\n<strong>Explanation:</strong> "FooBar" can be generated like this "F" + "oo" + "B" + "ar".\n"FootBall" can be generated like this "F" + "oot" + "B" + "all".\n"FrameBuffer" can be generated like this "F" + "rame" + "B" + "uffer".\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FoBa"\n<strong>Output:</strong> [true,false,true,false,false]\n<strong>Explanation:</strong> "FooBar" can be generated like this "Fo" + "o" + "Ba" + "r".\n"FootBall" can be generated like this "Fo" + "ot" + "Ba" + "ll".\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> queries = ["FooBar","FooBarTest","FootBall","FrameBuffer","ForceFeedBack"], pattern = "FoBaT"\n<strong>Output:</strong> [false,true,false,false,false]\n<strong>Explanation:</strong> "FooBarTest" can be generated like this "Fo" + "o" + "Ba" + "r" + "T" + "est".\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= pattern.length, queries.length <= 100</code></li>\n\t<li><code>1 <= queries[i].length <= 100</code></li>\n\t<li><code>queries[i]</code> and <code>pattern</code> consist of English letters.</li>\n</ul>\n",
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"difficulty": "Medium",
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"likes": 851,
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"exampleTestcases": "[\"FooBar\",\"FooBarTest\",\"FootBall\",\"FrameBuffer\",\"ForceFeedBack\"]\n\"FB\"\n[\"FooBar\",\"FooBarTest\",\"FootBall\",\"FrameBuffer\",\"ForceFeedBack\"]\n\"FoBa\"\n[\"FooBar\",\"FooBarTest\",\"FootBall\",\"FrameBuffer\",\"ForceFeedBack\"]\n\"FoBaT\"",
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"categoryTitle": "Algorithms",
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"name": "Two Pointers",
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"code": "class Solution {\npublic:\n vector<bool> camelMatch(vector<string>& queries, string pattern) {\n \n }\n};",
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"code": "class Solution {\n public List<Boolean> camelMatch(String[] queries, String pattern) {\n \n }\n}",
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"code": "class Solution(object):\n def camelMatch(self, queries, pattern):\n \"\"\"\n :type queries: List[str]\n :type pattern: str\n :rtype: List[bool]\n \"\"\"\n ",
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"code": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nbool* camelMatch(char** queries, int queriesSize, char* pattern, int* returnSize) {\n \n}",
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"code": "class Solution {\n\n /**\n * @param String[] $queries\n * @param String $pattern\n * @return Boolean[]\n */\n function camelMatch($queries, $pattern) {\n \n }\n}",
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"lang": "Kotlin",
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"code": "class Solution {\n fun camelMatch(queries: Array<String>, pattern: String): List<Boolean> {\n \n }\n}",
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"lang": "Ruby",
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"langSlug": "ruby",
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"code": "# @param {String[]} queries\n# @param {String} pattern\n# @return {Boolean[]}\ndef camel_match(queries, pattern)\n \nend",
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"lang": "Scala",
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"langSlug": "scala",
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"code": "object Solution {\n def camelMatch(queries: Array[String], pattern: String): List[Boolean] = {\n \n }\n}",
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"code": "impl Solution {\n pub fn camel_match(queries: Vec<String>, pattern: String) -> Vec<bool> {\n \n }\n}",
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"lang": "Racket",
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"code": "(define/contract (camel-match queries pattern)\n (-> (listof string?) string? (listof boolean?))\n )",
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "-spec camel_match(Queries :: [unicode:unicode_binary()], Pattern :: unicode:unicode_binary()) -> [boolean()].\ncamel_match(Queries, Pattern) ->\n .",
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"langSlug": "elixir",
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"code": "defmodule Solution do\n @spec camel_match(queries :: [String.t], pattern :: String.t) :: [boolean]\n def camel_match(queries, pattern) do\n \n end\nend",
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"hints": [
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"Given a single pattern and word, how can we solve it?",
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"One way to do it is using a DP (pos1, pos2) where pos1 is a pointer to the word and pos2 to the pattern and returns true if we can match the pattern with the given word.",
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"We have two scenarios: The first one is when `word[pos1] == pattern[pos2]`, then the transition will be just DP(pos1 + 1, pos2 + 1). The second scenario is when `word[pos1]` is lowercase then we can add this character to the pattern so that the transition is just DP(pos1 + 1, pos2)\r\nThe case base is `if (pos1 == n && pos2 == m) return true;` Where n and m are the sizes of the strings word and pattern respectively."
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],
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"solution": null,
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"sampleTestCase": "[\"FooBar\",\"FooBarTest\",\"FootBall\",\"FrameBuffer\",\"ForceFeedBack\"]\n\"FB\"",
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