/in/foo.cc: In function 'int main()':
/in/foo.cc:20:18: error: 'j' was not declared in this scope
   20 |             a[l][j]=c;
      |                  ^
/in/foo.cc:22:9: error: 'current' was not declared in this scope
   22 |         current++;
      |         ^~~~~~~
/in/foo.cc:26:19: error: 'setw' was not declared in this scope; did you mean 'getw'?
   26 |             cout<<setw(6)<<a[i][j];
      |                   ^~~~
      |                   getw