我的随笔

[Codeforces 997C]Sky Full of Stars(排列组合+容斥原理)

birchtree 2019-07-18 09:36 阅读:338 评论:0 推荐:0

[HDU 3625]Examining the Rooms (第一类斯特林数)

birchtree 2019-07-17 22:09 阅读:212 评论:0 推荐:1

[Codeforces 364D]Ghd(随机算法+gcd)

birchtree 2019-07-17 21:53 阅读:516 评论:0 推荐:1

[Codeforces 865C]Gotta Go Fast(期望dp+二分答案)

birchtree 2019-07-17 21:37 阅读:279 评论:0 推荐:0

[HDU 5293]Tree chain problem(树形dp+树链剖分)

birchtree 2019-07-16 16:09 阅读:404 评论:1 推荐:1

[HDU 1529]Cashier Employment(差分约束系统)

birchtree 2019-07-16 13:46 阅读:304 评论:1 推荐:1

[Codeforces 555E]Case of Computer Network(Tarjan求边-双连通分量+树上差分)

birchtree 2019-07-16 08:19 阅读:379 评论:0 推荐:0

[BZOJ 4771]七彩树(可持久化线段树+树上差分)

birchtree 2019-07-14 21:25 阅读:411 评论:1 推荐:0

[Codeforces 163D]Large Refrigerator (DFS+剪枝)

birchtree 2019-07-14 21:00 阅读:253 评论:0 推荐:0

[Codeforces 280D]k-Maximum Subsequence Sum（线段树)

birchtree 2019-07-14 20:42 阅读:300 评论:0 推荐:0