2019年9月3日
2019 宁夏网络赛
摘要： A、Maximum Element In A Stack As an ACM-ICPC newbie, Aishah is learning data structures in computer science. She has already known that a stack, as a d 阅读全文
posted @ 2019-09-03 20:57 知道了呀~ 阅读(398) 评论(0) 推荐(0)
2019 南京网络赛
摘要： F、Greedy Sequence You're given a permutation aa of length nn (1 \le n \le 10^51≤n≤105). For each i \in [1,n]i∈[1,n], construct a sequence s_isi​ by th 阅读全文
posted @ 2019-09-03 15:11 知道了呀~ 阅读(324) 评论(0) 推荐(0)