mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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162 lines
16 KiB
JSON
162 lines
16 KiB
JSON
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"questionId": "1786",
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"title": "Count the Number of Consistent Strings",
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"content": "<p>You are given a string <code>allowed</code> consisting of <strong>distinct</strong> characters and an array of strings <code>words</code>. A string is <strong>consistent </strong>if all characters in the string appear in the string <code>allowed</code>.</p>\n\n<p>Return<em> the number of <strong>consistent</strong> strings in the array </em><code>words</code>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> allowed = "ab", words = ["ad","bd","aaab","baa","badab"]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> Strings "aaab" and "baa" are consistent since they only contain characters 'a' and 'b'.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> allowed = "abc", words = ["a","b","c","ab","ac","bc","abc"]\n<strong>Output:</strong> 7\n<strong>Explanation:</strong> All strings are consistent.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> allowed = "cad", words = ["cc","acd","b","ba","bac","bad","ac","d"]\n<strong>Output:</strong> 4\n<strong>Explanation:</strong> Strings "cc", "acd", "ac", and "d" are consistent.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= words.length <= 10<sup>4</sup></code></li>\n\t<li><code>1 <= allowed.length <=<sup> </sup>26</code></li>\n\t<li><code>1 <= words[i].length <= 10</code></li>\n\t<li>The characters in <code>allowed</code> are <strong>distinct</strong>.</li>\n\t<li><code>words[i]</code> and <code>allowed</code> contain only lowercase English letters.</li>\n</ul>\n",
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"difficulty": "Easy",
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"exampleTestcases": "\"ab\"\n[\"ad\",\"bd\",\"aaab\",\"baa\",\"badab\"]\n\"abc\"\n[\"a\",\"b\",\"c\",\"ab\",\"ac\",\"bc\",\"abc\"]\n\"cad\"\n[\"cc\",\"acd\",\"b\",\"ba\",\"bac\",\"bad\",\"ac\",\"d\"]",
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"code": "# @param {String} allowed\n# @param {String[]} words\n# @return {Integer}\ndef count_consistent_strings(allowed, words)\n \nend",
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"code": "impl Solution {\n pub fn count_consistent_strings(allowed: String, words: Vec<String>) -> i32 {\n \n }\n}",
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"A string is incorrect if it contains a character that is not allowed",
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"Constraints are small enough for brute force"
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"sampleTestCase": "\"ab\"\n[\"ad\",\"bd\",\"aaab\",\"baa\",\"badab\"]",
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