2017年9月16日
AtCoder Regular Contest 083 D:Restoring Road Network
摘要： In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known 阅读全文
posted @ 2017-09-16 22:03 Aragaki 阅读(212) 评论(0) 推荐(0) 编辑