2018年7月10日
ABC Fennec VS. Snuke
摘要： 题目描述 Fennec and Snuke are playing a board game. On the board, there are N cells numbered 1 through N, and N−1 roads, each connecting two cells. Cell a 阅读全文
posted @ 2018-07-10 22:58 house_cat 阅读(311) 评论(0) 推荐(0) 编辑