LP3978 [TJOI2015] 概率论 [递推/结论]
HDU4652 Dice [期望]
LP4284 [SHOI2014]概率充电器 [期望/树形dp]
LP1654 OSU! [期望]
LP3236 [HNOI2014]画框 [分治/二分图匹配]
LP3235 [HNOI2014]江南乐 [博弈]
LP3234 [HNOI2014]抄卡组