摘要: 有n张牌,求出至少有k张牌连续是正面的排列的种数。(1=<k<=n<=100) Toss is an important part of any event. When everything becomes equal toss is the ultimate decider. Normally a 阅读全文
posted @ 2018-11-08 17:18 ZYacmer 阅读(526) 评论(0) 推荐(0) 编辑