Jeanny
寂兮,寥兮,独立不改,周行而不殆
摘要: loj 分块1 #include<bits/stdc++.h> using namespace std; int n,a[50005],sum[50005],L[50005],R[50005],belong[50005]; void build(){ int block = sqrt(n); int 阅读全文
posted @ 2022-04-23 17:30 Jeanny 阅读(34) 评论(0) 推荐(0)