如果我们可以将小写字母插入模式串 pattern 得到待查询项 query，那么待查询项与给定模式串匹配。（我们可以在任何位置插入每个字符，也可以插入 0 个字符。） 给定待查询列表 queries，和模式串 pattern，返回由布尔值组成的答案列表 answer。只有在待查项 queries[i] 与模式串 pattern 匹配时， answer[i] 才为 true，否则为 false。   示例 1： 输入：queries = ["FooBar","FooBarTest","FootBall","FrameBuffer"…

Given a string s, check if it can be constructed by taking a substring of it and appending multiple copies of the substring together.   Example 1: Input: s = "abab" Output: true Explanation: It is the substring "ab" twice. Example 2: Input: s = "aba" Output:…

给你两个字符串，str1 和 str2，其长度分别为 n 和 m 。

You are given two strings, str1 and str2, of lengths n and m, respectively. A string word of length n + m - 1 is defined to be generated by str1 and str2 if it satisfies the following conditions for each index 0 <= i <= n - 1:

给定两个字符串, s 和 goal。如果在若干次旋转操作之后，s 能变成 goal ，那么返回 true 。 s 的 旋转操作 就是将 s 最左边的字符移动到最右边。 

Given two strings s and goal, return true if and only if s can become goal after some number of shifts on s. A shift on s consists of moving the leftmost character of s to the rightmost position.