View Compilation Error

0_0_39165873_13178.cpp: In function 'void bfs(int)':
0_0_39165873_13178.cpp:47:21: error: 'n' was not declared in this scope
   47 |     for(i = 0; i <= n - 1; i++)
      |                     ^
0_0_39165873_13178.cpp:58:9: error: 'cnt' was not declared in this scope; did you mean 'int'?
   58 |         cnt++;
      |         ^~~
      |         int
0_0_39165873_13178.cpp:69:8: error: 'cnt' was not declared in this scope; did you mean 'int'?
   69 |     if(cnt != sum)
      |        ^~~
      |        int