{ "data": { "question": { "questionId": "808", "questionFrontendId": "792", "categoryTitle": "Algorithms", "boundTopicId": 1097, "title": "Number of Matching Subsequences", "titleSlug": "number-of-matching-subsequences", "content": "

Given a string s and an array of strings words, return the number of words[i] that is a subsequence of s.

\n\n

A subsequence of a string is a new string generated from the original string with some characters (can be none) deleted without changing the relative order of the remaining characters.

\n\n\n\n

 

\n

Example 1:

\n\n
\nInput: s = "abcde", words = ["a","bb","acd","ace"]\nOutput: 3\nExplanation: There are three strings in words that are a subsequence of s: "a", "acd", "ace".\n
\n\n

Example 2:

\n\n
\nInput: s = "dsahjpjauf", words = ["ahjpjau","ja","ahbwzgqnuk","tnmlanowax"]\nOutput: 2\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "匹配子序列的单词数", "translatedContent": "

给定字符串 s 和字符串数组 words, 返回  words[i] 中是s的子序列的单词个数 。

\n\n

字符串的 子序列 是从原始字符串中生成的新字符串，可以从中删去一些字符(可以是none)，而不改变其余字符的相对顺序。

\n\n\n\n

 

\n\n

示例 1:

\n\n
\n输入: s = \"abcde\", words = [\"a\",\"bb\",\"acd\",\"ace\"]\n输出: 3\n解释: 有三个是 s 的子序列的单词: \"a\", \"acd\", \"ace\"。\n
\n\n

Example 2:

\n\n
\n输入: s = \"dsahjpjauf\", words = [\"ahjpjau\",\"ja\",\"ahbwzgqnuk\",\"tnmlanowax\"]\n输出: 2\n
\n\n

 

\n\n

提示:

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