UOJ108 [APIO2013] TOLL [枚举/生成树]
CF1059D Nature Reserve [计算/三分]
LP3577 [POI2014]TUR-Tourism [状压DP]
CF348E Pilgrims [树状DP]
LP3206 [HNOI2010] City [分治/生成树]
LP1039 [NOIP2003] 侦探推理 [模拟/枚举/2-SAT]
LP2331 [HNOI2002] 跳蚤 [容斥/裴蜀定理]