problem0796

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Published: Jul 25, 2019 License: MIT Imports: 1 Imported by: 0

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796. Rotate String

题目

We are given two strings, A and B.

A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can become B after some number of shifts on A.

Example 1:
Input: A = 'abcde', B = 'cdeab'
Output: true

Example 2:
Input: A = 'abcde', B = 'abced'
Output: false

Note:

  1. A and B will have length at most 100.

解题思路

见程序注释

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