/in/foo.cc: In function 'int main()':
/in/foo.cc:6:14: error: 'n' was not declared in this scope
    6 |         cin>>n>>m;
      |              ^
/in/foo.cc:6:17: error: 'm' was not declared in this scope
    6 |         cin>>n>>m;
      |                 ^
/in/foo.cc:11:20: error: 'cc' was not declared in this scope; did you mean 'c'?
   11 |                 bb=cc;
      |                    ^~
      |                    c