View Compilation Error

0_0_13784752_7898.cpp: In function 'int dfs(int, int, int)':
0_0_13784752_7898.cpp:8:14: error: 'f' was not declared in this scope
  if(dp[x][y][f]!=inf) return dp[x][y][f];  
              ^
0_0_13784752_7898.cpp:14:13: error: 'f' was not declared in this scope
   if((i==1&&f==2)||(i==2&&f==1)) continue;
             ^
0_0_13784752_7898.cpp:18:18: error: 'f' was not declared in this scope
  return dp[x][y][f]=Max;
                  ^
0_0_13784752_7898.cpp: In function 'int main()':
0_0_13784752_7898.cpp:36:1: error: expected '}' at end of input
 } 
 ^