To Do List
really do it?
ICPC算法
https://www.codechef.com/NOV20B/problems/CNDYGAME
https://codeforces.com/gym/102822/standings/friends/true
https://atcoder.jp/contests/abc182/tasks/abc182_f
https://codeforces.com/contest/1436/problem/E
To Do List
ACMer，无怨无悔