mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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180 lines
19 KiB
JSON
180 lines
19 KiB
JSON
{
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"question": {
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"questionId": "3569",
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"questionFrontendId": "3306",
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"boundTopicId": null,
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"title": "Count of Substrings Containing Every Vowel and K Consonants II",
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"content": "<p>You are given a string <code>word</code> and a <strong>non-negative</strong> integer <code>k</code>.</p>\n\n<p>Return the total number of <span data-keyword=\"substring-nonempty\">substrings</span> of <code>word</code> that contain every vowel (<code>'a'</code>, <code>'e'</code>, <code>'i'</code>, <code>'o'</code>, and <code>'u'</code>) <strong>at least</strong> once and <strong>exactly</strong> <code>k</code> consonants.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">word = "aeioqq", k = 1</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">0</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>There is no substring with every vowel.</p>\n</div>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">word = "aeiou", k = 0</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">1</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>The only substring with every vowel and zero consonants is <code>word[0..4]</code>, which is <code>"aeiou"</code>.</p>\n</div>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">word = "</span>ieaouqqieaouqq<span class=\"example-io\">", k = 1</span></p>\n\n<p><strong>Output:</strong> 3</p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>The substrings with every vowel and one consonant are:</p>\n\n<ul>\n\t<li><code>word[0..5]</code>, which is <code>"ieaouq"</code>.</li>\n\t<li><code>word[6..11]</code>, which is <code>"qieaou"</code>.</li>\n\t<li><code>word[7..12]</code>, which is <code>"ieaouq"</code>.</li>\n</ul>\n</div>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>5 <= word.length <= 2 * 10<sup>5</sup></code></li>\n\t<li><code>word</code> consists only of lowercase English letters.</li>\n\t<li><code>0 <= k <= word.length - 5</code></li>\n</ul>\n",
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"exampleTestcases": "\"aeioqq\"\n1\n\"aeiou\"\n0\n\"ieaouqqieaouqq\"\n1",
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"code": "-spec count_of_substrings(Word :: unicode:unicode_binary(), K :: integer()) -> integer().\ncount_of_substrings(Word, K) ->\n .",
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"We can use sliding window and binary search.",
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"For each index <code>r</code>, find the maximum <code>l</code> such that both conditions are satisfied using binary search."
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],
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"sampleTestCase": "\"aeioqq\"\n1",
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