OJ Board

I am getting time limit.Here is my code.It's running for all cases that i have checked.please guide me.

# include <bits/stdc++.h>

using namespace std;

#define WHITE 0
#define BLACK 1
typedef vector<int> edges;
typedef vector<edges> nodes;

int permant[110];
int d_num[110];

void dfs(int node,int ...