OJ Board

I don't know why but I keep getting TLE. Is there some way to make it faster? :/

#include <cstdio>
#include <algorithm>
#include <queue>

using namespace std;

typedef pair<int, int> pii;

#define mp make_pair
#define fst first
#define snd second
#define MAXN 20005
#define MAXM 50005

int T, N ...