foo.cc: In function ‘int main()’:
foo.cc:6:18: warning: right operand of comma operator has no effect [-Wunused-value]
    6 |         cin>>a,b,c;
      |                  ^
foo.cc:6:19: warning: right operand of comma operator has no effect [-Wunused-value]
    6 |         cin>>a,b,c;
      |                   ^
foo.cc:32:30: error: expected ‘;’ before ‘}’ token
   32 |         cout<<max2<<" "<<max1
      |                              ^
      |                              ;
......
   39 | }
      | ~