CODEFORCES 340 XOR and Favorite Number 莫队模板题
摘要:
原来我直接学的是假的莫队 原题: Bob has a favorite number k and ai of length n. Now he asks you to answer m queries. Each query is given by a pair li and ri and asks 阅读全文
posted @ 2017-02-21 21:32 cdcq_old 阅读(170) 评论(0) 推荐(0) 编辑