Codeforces 997C - Sky Full of Stars

combinatorics 标签

2018

07-27

Codeforces 997C - Sky Full of Stars

2016

09-04

Codeforces 689E Mike and Geometry Problem

08-29

Codeforces 711D Directed Roads

05-11

USACO Shuttle Puzzle

04-30

USACO Stringsobits

03-31

USACO Combination Lock

2015

08-30

UVa 1262 - Password（组合数）

08-29

UVa 10943 - How do you add?（组合数）

07-25

UVa 12034 - Race（组合＋递推）

06-11

Training：组合博弈入门