2019年7月21日
HDU-6534-Chika and Friendly Pairs (莫队算法,树状数组,离散化)
摘要： 链接: https://vjudge.net/contest/308446 problem/C 题意: Chika gives you an integer sequence a1,a2,…,an and m tasks. For each task, you need to answer the 阅读全文
posted @ 2019-07-21 11:14 YDDDD 阅读(304) 评论(0) 推荐(0)