摘要: 1045 Favorite Color Stripe (30 分)Eva is trying to make her own color stripe out of a given one. She would like to keep only her favori... 阅读全文
posted @ 2018-12-07 21:31 erge1998 阅读(365) 评论(0) 推荐(1) 编辑
摘要: 1034 Head of a Gang (30 分)One way that the police finds the head of a gang is to check people's phone calls. If there is a phone call... 阅读全文
posted @ 2018-12-07 20:46 erge1998 阅读(210) 评论(0) 推荐(0) 编辑