摘要:
https://www.luogu.com.cn/problem/P3373#include<bits/stdc++.h> #define N 100005 #define endl '\n' #define _for(i,a,b) for(int i=a;i<b;i++) using namesp 阅读全文
摘要:
https://www.luogu.com.cn/problem/P3372 #include<bits/stdc++.h> #define N 500005 #define endl '\n' #define _for(i,a,b) for(int i=a;i<b;i++) using names 阅读全文