摘要：
Have you ever read any book about treasure exploration? Have you ever see any film about treasure exploration? Have you ever explored treasure? If you 阅读全文
摘要：
Consider a town where all the streets are one-way and each street leads from one intersection to another. It is also known that starting from an inter 阅读全文
摘要：
题目背景 众周所知，在西洋棋中，我们有城堡、骑士、皇后、主教和长脖子鹿。 众周所知，在西洋棋中，我们有城堡、骑士、皇后、主教和长脖子鹿。 题目描述 如图所示，西洋棋的“长脖子鹿”，类似于中国象棋的马，但按照“目”字攻击，且没有中国象棋“别马腿”的规则。（因为长脖子鹿没有马腿） 给定一个N * MN∗ 阅读全文