摘要: "题目链接" 牛券 题目描述 Farmer John needs new cows! There are $N$ cows for sale $(1 \le N \le 50,000)$, and FJ has to spend no more than his budget of $M$ unit 阅读全文
posted @ 2020-01-17 16:51 oblivionl 阅读(195) 评论(0) 推荐(0)