02-09 2025_ICPC_NERC_Northern_Eurasia_Finals——F. Fragmented Nim（先碰到弹性堆的那一方，一定赢了，因为他不仅可以制造陷阱，还可以逼迫对手进入陷阱）
11-26 2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams)A. Bonus Project