2018年8月8日
poj-2369-置换
摘要： Permutations Permutations We remind that the permutation of some final set is a one-to-one mapping of the set onto itself. Less formally, that is a wa 阅读全文
posted @ 2018-08-08 14:42 *zzq 阅读(261) 评论(0) 推荐(0)