摘要："传送门" 一道憨憨的 Lca 模板题。 Code 阅读全文

摘要：贵有恒，何必三更起五更眠；最无益，莫过一日曝十日寒。 8010: Mountaineers 题目描述 The Chilean Andes have become increasingly popular as a destination for backpacking and hiking. Man 阅读全文

摘要：131072K After the long vacation, the maze designer master has to do his job. A tour company gives him a map which is a rectangle. The map consists of  阅读全文