2018年1月26日
HDU - 2586 How far away? 在线LCA ST算法
摘要： There are n houses in the village and some bidirectional roads connecting them. Every day peole always like to ask like this "How far is it if I want 阅读全文
posted @ 2018-01-26 20:21 晓风微微 阅读(201) 评论(0) 推荐(0) 编辑
贴图片
摘要： 阅读全文
posted @ 2018-01-26 10:48 晓风微微 阅读(314) 评论(0) 推荐(0) 编辑