2016 多校5 ATM
COCI2011/2012 Contest 1 F 状压加速Dp
[COCI2010-2011 7] UPIT
[COCI2010-2011 2] CRNI(单调栈)
[WC2020] 选课 (枚举+Dp)
HDU-6886 Tic-Tac-Toe-Nim(2020HDU多校第十场T10)
[HDU-6883] Coin Game(2020HDU多校第十场T7)
[[HDU-6791] 2020HDU多校第三场T1](回文自动机)
[HDU-6848] Expectation (2020多校7T5) (Dp)
[HDU-6847] Decision (2020多校7T4) (类欧几里得问题)