Given a string and an offset, rotate string by offset. (rotate from left to right) Example Given "abcdefg" for offset=0, return "abcdefg" for offset=1, return ...

- Different problem: 给一个char[], 要rotate offset times. - *三步rotate* - 有个坑：offset可能很长，那么要%length，才能得到真正需要rotate的部分。 - Note: rotate 一个 full length之后，是string 不变 We are given two strings, A and B. A shift ...