Code:
       {
         cout<<"Enter two numbers to be added: ";
         cin>>a>>b;
         cout<<"The sum of your two numbers is: "<<add(a, b);
         cin.get();
         return 0;  //!! Seems pretty pointless to quit the program after one run
       }
       int add(int a, int b) //!! Embedded function definitions are not supported - move them outside of main()
       {
         cin.get();
         return a+b;
       }