HDU 5984 题解 数学推导 期望
摘要：
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 the leng 阅读全文
posted @ 2019-09-05 21:53 Caution_X 阅读(233) 评论(0) 推荐(0) 编辑
