摘要: $Code$ #include<cstdio> #include<algorithm> using namespace std; const int N = 2e5 + 5; int rt[N << 5],lc[N << 5],rc[N << 5],a[N],b[N],n,m,tot = 0,sum 阅读全文
posted @ 2022-07-06 22:11 RiverSheep 阅读(53) 评论(1) 推荐(0)