Program to set Nth bit of a number in C++

#include <iostream>
using namespace std;

int main()
{
    int num, n;

    cout << "Enter number: ";
    cin >> num;

    cout << "Enter bit number you wish to set: ";
    cin >> n;

    cout << "Bit set Successfully" << endl;
    cout << "Answer: " << (num | (1 << (n - 1))) << endl;

    return 0;
}

Output

Enter Number
13

Enter bit number you wish to set
2

Bit set Successfully
Answer: 15