题解

2020-07-26 CS Academy Round #10 - Expected Tree Degrees
2020-04-20 CF484E Sign on Fence
2020-04-17 「SDOI2017」树点涂色
2020-02-26 「HNOI2010」城市建设(线段树分治,LCT/Kruskal)
2020-02-18 CF603E Pastoral Oddities(结论,LCT/分治+并查集)
2020-01-08 「HNOI2016」最小公倍数(回滚莫队,并查集)
2020-01-07 「NOI2018」你的名字(SAM,线段树合并)
2019-12-06 CF786C Till I Collapse(根号分治,二分答案 / 主席树,调和级数)
2019-12-05 CF594D REQ(数颜色,莫队,树状数组,数论)
2019-12-04 CF455D Serega and Fun(分块 / 平衡树)
2019-11-29 CF901C Bipartite Segments(二分图)
2019-11-29 CF1260F Colored Tree(点分治,差分,基数排序)
2019-11-25 「NOI2014」购票(斜率优化,点分治)
2019-10-16 CF3D Least Cost Bracket Sequence(贪心)
2019-10-15 CF512C Fox And Dinner(二分图,最大流)
2019-10-15 CF508D Tanya and Password(欧拉路径)
2019-10-11 gym102268D Dates(贪心,二分图匹配,线段树)
2019-10-08 CF878E Numbers on the blackboard(贪心,并查集)
2019-09-16 BJOI2019 删数(贪心,线段树)
2019-09-16 CF1209F Koala and Notebook(BFS,最短路)
2019-09-10 CF516D Drazil and Morning Exercise(up and down,并查集)
2019-09-05 LOJ6519 魔力环(Burnside引理,容斥原理)
2019-09-04 LOJ6077 逆序对(生成函数,计数dp)
2019-09-04 LOJ6089 小Y的背包计数问题(根号分治,计数dp)
2019-08-27 CF1208G Polygons(数论)