HBC234822[SCOI2008]天平,最短路increment of coins题解 背包有三种硬币，随机从背包选一枚硬币，然后放一枚一样的硬币进去，请计算操作次数的期望值。... 算法基础篇 2023-11-12 50 #HBC234822[SCOI2008]天平 #最短路increment of coins题解
![HBC234822[SCOI2008]天平,最短路increment of coins题解](https://www.xxstcz.com/zb_users/cache/thumbs/a2bcb45832739b802987458a7f403f8b-320-200-1.jpeg "HBC234822[SCOI2008]天平,最短路increment of coins题解")