2017年5月5日
1023: Pong’s Birds（概率）
摘要： 1023: Pong’s Birds 题目描述 In order to train his birds, Pong is holding a competition for them. (He have birds, does he?) He have 2n birds,so he want to 阅读全文
posted @ 2017-05-05 08:35 gongpixin 阅读(230) 评论(0) 推荐(0) 编辑