哺乳动物 发表于 2025-3-30 11:44:18
http://reply.papertrans.cn/24/2301/230020/230020_51.png我邪恶 发表于 2025-3-30 14:10:00
Pigeonhole principle,ho weighs at the most 41 kg. In fact, if there is one student with weight larger than 41 kg., then there must be some other student whose weight is less than 41 kg. There are four suits (spades, hearts, diamonds and clubs in the hierarchy) in a pack of 52 cards where every bridge player receives 13