2014年11月10日
usaco6.1-Cow XOR：trie树
摘要： Cow XORAdrian Vladu -- 2005Farmer John is stuck with another problem while feeding his cows.All of his N (1 ≤ N ≤ 100,000) cows (numbered 1..N) areli... 阅读全文
posted @ 2014-11-10 18:42 PlasticSpirit 阅读(330) 评论(0) 推荐(0)