随笔分类 -  莫队

CodeFroce Round 340 div2 E XOR and Favorite Number【莫队算法】
摘要：题面： 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 you to count 阅读全文
posted @ 2017-08-16 18:34 SCaryon 阅读(179) 评论(0) 推荐(0)