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习题链接：LeetCode 402. 移掉 K 位数字，更多细节参见服务器推荐
5CB -4 DLY IN+= ; delay slot 3: IND points to low DWORD，详情可参考Line官方版本下载
How to watch India vs. Zimbabwe for freeIndia vs. Zimbabwe in the 2026 T20 Cricket World Cup is available to live stream for free on ICC.TV.
* 时间复杂度: O(d*(n+k)) d:位数 k:进制(10) 空间复杂度: O(n+k) 稳定: ✓