C++-字符串-旋转操作
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Background
Description
旋转操作。
把字符串旋转一次操作等价于把字符串的最后一个字符改放到第1个字符的前面。
例如：”abcdefg”旋转一次为”gfedcba”
Format
Input
Output
Samples
abcdefg
gfedcba
Limitation
1s, 1024KiB for each test case.
