题意 给出 N N N件商品， K K K张优惠券，每个商品原价为 p i p_i pi​，使用优惠券后价格为 q i q_i qi​，现在有 M M M钱，求出最多能买多少件商品。 思路 开 3 3 3个小根堆，分别放 p i p_i pi​， q i q_i qi​， p i − q i p_i-q_i pi​−qi​，其中 p i − q i p_i-q_i pi​−qi​相当于再花那

1148 Werewolf - Simple Version (20) （20 分） Werewolf（狼人杀） is a game in which the players are partitioned into two parties: the werewolves and the human beings. Suppose that in a game, player #1 said: