2019年3月6日
CodeForces 1000F One Occurrence
摘要： You are given an array $a$ consisting of $n$ integers, and $q$ queries to it. $i$-th query is denoted by two integers $l_i$ and $r_i$. For each query, 阅读全文
posted @ 2019-03-06 17:49 wawcac 阅读(336) 评论(0) 推荐(0)