2020年10月22日
Codeforces1156E. Special Segments of Permutation
摘要： Description You are given a permutation p of n integers 1, 2, ..., n (a permutation is an array where each element from 1 to n occurs exactly once). L 阅读全文
posted @ 2020-10-22 21:43 Sport_River 阅读(121) 评论(0) 推荐(0) 编辑