C++ Factorial By Recursion

#include<iostream>
using namespace std;
int anik(int a)
{
    if(a == 1)
        return 1;
    else
        return a * anik(a - 1);
}
int main()
{
    int n, b;

    cout << "Enter A Number : ";
    cin >> n;
    cout << endl;

     b = anik(n);

     cout << "Factorial :: " << b << endl;

    return 0;
}