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459. 重复的子字符串

 2 years ago
source link: https://leetcode.cn/problems/repeated-substring-pattern/
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459. 重复的子字符串

给定一个非空的字符串 s ，检查是否可以通过由它的一个子串重复多次构成。

示例 1:

输入: s = "abab"
输出: true
解释: 可由子串 "ab" 重复两次构成。

示例 2:

输入: s = "aba"
输出: false

示例 3:

输入: s = "abcabcabcabc"
输出: true
解释: 可由子串 "abc" 重复四次构成。 (或子串 "abcabc" 重复两次构成。)

提示：

  • 1 <= s.length <= 104
  • s 由小写英文字母组成

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