2018年5月14日
Box and Ball
摘要： 5582: Box and Ball 题目描述 We have N boxes, numbered 1 through N. At first, box 1 contains one red ball, and each of the other boxes contains one white b 阅读全文
posted @ 2018-05-14 20:30 zangzang 阅读(235) 评论(0) 推荐(0) 编辑