code: add max

main.cpp

@@ -11,5 +11,10 @@ int main()
      << "A - B = " << a - b << '\n'
      <<"A * B = " << a * b << '\n'
      << "A / B = " << a / b << '\n';
+     if(a>b){
+        cerr<<"A-max   "<<a<<'\n';
+     }else{
+        cerr<<"B-max   "<<b<<'\n';
+     }
 
 }