A few questions regarding C++

Question

1) Does an 'If' statement allow the use of addition/subtraction/multiplication/etc within it's condition?
Ex. if (b[0]+b[1]+b[2]==3||12) {'execute code'}
Note. b is a 3 int array for this example.

2) Is it possible to cout nothing while representing an integer?
Ex. cout << b[2] << endl;
//shows an empty space, even if b[2] has a value of, let's say, 0.

Answer 1

#include <iostream>

using namespace std;

int main()
{
int b[] = {1, 2, 3};

if ((b[0]+b[1]+b[2])== 3 || (b[0]+b[1]+b[2])== 12){
//some code
cout << "Success!\n" ;
}
else{cout << "Failure! \n";}

}
//Outputs "Failure!"

================================================

This will work for you, but consider assigning the sum to an integer because it's very unweildy in that form.

Answer 2

If you want an empty space, use :
cout<<' ';

Answer 3

Thank you Aaron. And I will test your Method Prunier.