2017年2月27日
USACO 6.1 Cow XOR
摘要： Farmer John is stuck with another problem while feeding his cows. All of his N (1 ≤ N ≤ 100,000) cows (numbered 1..N) are lined up in front of the bar 阅读全文
posted @ 2017-02-27 15:19 sigongzi 阅读(538) 评论(0) 推荐(0) 编辑