2018年7月21日
Codeforce 886 Технокубок 2018 - Отборочный Раунд 3 C. Petya and Catacombs(结论题）
摘要： A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through th 阅读全文
posted @ 2018-07-21 22:35 断腿三郎 阅读(166) 评论(0) 推荐(0) 编辑