OJ Board

I am not sure what is wrong with this. Please take a look. Keep getting WA. Thanks!
#include <cstdio>
#include <queue>
#include <cstring>
#define MAXN 305
#define INF 1000000000

using namespace std;

struct Edge {
int u, v, a, b, t;
Edge(int uu, int vv, int aa, int bb, int tt) : u(uu), v(vv), a ...

Hi Bryanfry, I am getting
WGJGGGGGGW
instead of
OGjGGGGGGW
I went through the commands manually and found the same result as "WGJGGGGGGW ".
Can someone explain to me what is happening here? Thanks!