OJ Board

I just can't make the prob. AC. Can you help? plz :(

[cpp]
#include<stdio.h>
struct Vertex
{
int X,Y;
char C;
};
char board[250][250]; //Drawing Board
int d1,d2;
int Visited[250][250];
void Explore(Vertex V)
{
int x[4][2]={-1,0,0,1,1,0,0,-1};
int cX,cY,i;
Vertex v;
if(Visited[V.Y][V.X]==1 ...