mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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161 lines
18 KiB
JSON
161 lines
18 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "3572",
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"questionFrontendId": "3298",
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"boundTopicId": null,
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"title": "Count Substrings That Can Be Rearranged to Contain a String II",
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"titleSlug": "count-substrings-that-can-be-rearranged-to-contain-a-string-ii",
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"content": "<p>You are given two strings <code>word1</code> and <code>word2</code>.</p>\n\n<p>A string <code>x</code> is called <strong>valid</strong> if <code>x</code> can be rearranged to have <code>word2</code> as a <span data-keyword=\"string-prefix\">prefix</span>.</p>\n\n<p>Return the total number of <strong>valid</strong> <span data-keyword=\"substring-nonempty\">substrings</span> of <code>word1</code>.</p>\n\n<p><strong>Note</strong> that the memory limits in this problem are <strong>smaller</strong> than usual, so you <strong>must</strong> implement a solution with a <em>linear</em> runtime complexity.</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\">word1 = "bcca", word2 = "abc"</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 valid substring is <code>"bcca"</code> which can be rearranged to <code>"abcc"</code> having <code>"abc"</code> as a prefix.</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\">word1 = "abcabc", word2 = "abc"</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">10</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>All the substrings except substrings of size 1 and size 2 are valid.</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\">word1 = "abcabc", word2 = "aaabc"</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">0</span></p>\n</div>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= word1.length <= 10<sup>6</sup></code></li>\n\t<li><code>1 <= word2.length <= 10<sup>4</sup></code></li>\n\t<li><code>word1</code> and <code>word2</code> consist only of lowercase English letters.</li>\n</ul>\n",
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"translatedTitle": null,
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"isPaidOnly": false,
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"difficulty": "Hard",
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"likes": 33,
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"similarQuestions": "[{\"title\": \"Minimum Window Substring\", \"titleSlug\": \"minimum-window-substring\", \"difficulty\": \"Hard\", \"translatedTitle\": null}]",
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"exampleTestcases": "\"bcca\"\n\"abc\"\n\"abcabc\"\n\"abc\"\n\"abcabc\"\n\"aaabc\"",
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"categoryTitle": "Algorithms",
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"code": "class Solution(object):\n def validSubstringCount(self, word1, word2):\n \"\"\"\n :type word1: str\n :type word2: str\n :rtype: int\n \"\"\"\n ",
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"code": "/**\n * @param {string} word1\n * @param {string} word2\n * @return {number}\n */\nvar validSubstringCount = function(word1, word2) {\n \n};",
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"code": "class Solution {\n\n /**\n * @param String $word1\n * @param String $word2\n * @return Integer\n */\n function validSubstringCount($word1, $word2) {\n \n }\n}",
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"code": "# @param {String} word1\n# @param {String} word2\n# @return {Integer}\ndef valid_substring_count(word1, word2)\n \nend",
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"code": "object Solution {\n def validSubstringCount(word1: String, word2: String): Long = {\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 valid_substring_count(word1: String, word2: String) -> i64 {\n \n }\n}",
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"lang": "Racket",
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"langSlug": "racket",
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"code": "(define/contract (valid-substring-count word1 word2)\n (-> string? string? exact-integer?)\n )",
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "-spec valid_substring_count(Word1 :: unicode:unicode_binary(), Word2 :: unicode:unicode_binary()) -> integer().\nvalid_substring_count(Word1, Word2) ->\n .",
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"lang": "Elixir",
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"langSlug": "elixir",
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"code": "defmodule Solution do\n @spec valid_substring_count(word1 :: String.t, word2 :: String.t) :: integer\n def valid_substring_count(word1, word2) do\n \n end\nend",
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"stats": "{\"totalAccepted\": \"8.8K\", \"totalSubmission\": \"15.2K\", \"totalAcceptedRaw\": 8836, \"totalSubmissionRaw\": 15159, \"acRate\": \"58.3%\"}",
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"hints": [
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"Use sliding window along with two-pointer here.",
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"Use constant space to store the frequency of characters."
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],
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"solution": null,
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"status": null,
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"sampleTestCase": "\"bcca\"\n\"abc\"",
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"metaData": "{\n \"name\": \"validSubstringCount\",\n \"params\": [\n {\n \"name\": \"word1\",\n \"type\": \"string\"\n },\n {\n \"type\": \"string\",\n \"name\": \"word2\"\n }\n ],\n \"return\": {\n \"type\": \"long\"\n }\n}",
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