/in/foo.cc:9:11: warning: missing terminating ' character
     scanf('%d%d",&n,&m);
           ^
/in/foo.cc:9:11: error: missing terminating ' character
     scanf('%d%d",&n,&m);
           ^~~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:10:5: error: expected primary-expression before 'int'
     int x;
     ^~~
/in/foo.cc:14:17: error: 'x' was not declared in this scope
     scanf("%d",&x);
                 ^
/in/foo.cc:19:6: error: 'maxn' was not declared in this scope
      maxn=max(maxn,f[i][j]
      ^~~~
/in/foo.cc:19:6: note: suggested alternative: 'main'
      maxn=max(maxn,f[i][j]
      ^~~~
      main
/in/foo.cc:20:4: error: expected ')' before '}' token
    }
    ^
/in/foo.cc:21:8: error: 'maxn' was not declared in this scope
  cout<<maxn;
        ^~~~
/in/foo.cc:21:8: note: suggested alternative: 'main'
  cout<<maxn;
        ^~~~
        main
/in/foo.cc:22:3: error: 'retiurn' was not declared in this scope
   retiurn 0;
   ^~~~~~~