View Compilation Error

0_0_25142333_6433.cpp: In function 'int can(int)':
0_0_25142333_6433.cpp:45:5: error: 'link' was not declared in this scope
     link[tmp] = t;
     ^
0_0_25142333_6433.cpp: In function 'void solve()':
0_0_25142333_6433.cpp:172:23: error: 'Match' was not declared in this scope
  printf("%d\n", Match());
                       ^