1000suns

1000suns:

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CF1217E Sum Queries? (线段树)

CF932F Escape Through Leaf(DP,斜率优化)

[POI2014]RAJ(最短路,拓扑排序)

Codeforces Global Round 4 题解

[清华集训2017]小 Y 和地铁(神奇思路,搜索,剪枝,树状数组)

CF1136E Nastya Hasn't Written a Legend(线段树)

CF1168C And Reachability(DP)

CF717A Festival Organization(第一类斯特林数,斐波那契数列)

[BJOI2019]勘破神机(第一类斯特林数,斐波那契数列)

Codeforces Round 564 题解

Hello 2020 题解

AtCoder Grand Contest 044 题解

CF1114F Please, another Queries on Array?(线段树,数论,欧拉函数,状态压缩)

UVAlive-7040 color(组合数学,二项式反演)

CodeChef 2020 July Long Challenge 题解

CF750G New Year and Binary Tree Paths(DP)

UOJ Round 19 题解

CF1253E Antenna Coverage(DP)

CF1253F Cheap Robot(神奇思路,图论,最短路,最小生成树/Kruskal 重构树/并查集)

CF1254D Tree Queries(树链剖分)