随笔分类 -  数学期望

HDU 5984.Pocky(2016 CCPC 青岛 C)
摘要：Pocky Let’s talking about something of eating a pocky. Here is a Decorer Pocky, with colorful decorative stripes in the coating, of length L. While th 阅读全文
posted @ 2019-03-11 16:57 里昂静 阅读(257) 评论(0) 推荐(0)