题解
2021-03-29
CF 643G Choosing Ads(线段树)
2021-03-23
Luogu P2824 [HEOI2016/TJOI2016]排序(线段树,二分答案)
2021-03-18
CF 997C Sky Full of Stars(二项式反演,DP)
2021-03-15
Luogu P5505 [JSOI2011]分特产(二项式反演,DP)
2020-12-10
CF 1310D Tourism(随机化)
2020-12-03
CF 1188C Array Beauty(DP)
2020-11-05
CF 966C Big Secret(数论,贪心)
2020-11-04
HDU 6231 Kth number(二分,双指针)
2020-11-03
Luogu P2633 Count on a tree(主席树,树剖)
2020-10-31
CF 759C Nikita and stack(线段树)
2020-10-31
CF 264C Choosing Balls(DP)
2020-10-31
CF 264B Good Sequences(DP,数论)
2020-10-29
BZOJ 3653 谈笑风生(主席树)
2020-10-28
CF 1436E Complicated Computations(线段树)
2020-10-28
Luogu P1972 [SDOI2009] HH的项链(主席树)
2020-10-27
HDU 5807 Keep In Touch(DP)
2020-10-26
CF 292E Copying Data(线段树)
2020-10-25
HDU 6074 Phone Call(并查集)
2020-10-23
HDU 6071 Lazy Running(同余最短路)
2020-10-23
Luogu P6852 Mex(思维)
2020-10-20
Luogu P3939 数颜色(主席树)
2020-10-10
HDU 4349 Xiao Ming's Hope(组合数学,卢卡斯定理)
2020-10-05
Luogu P2051 [AHOI2009]中国象棋(DP)