随笔分类 -  LCA

hduP2586——How far away ？
摘要：Problem Description There are n houses in the village and some bidirectional roads connecting them. Every day peole always like to ask like this "How 阅读全文
posted @ 2016-10-31 21:59 deadshotz 阅读(338) 评论(0) 推荐(0) 编辑