Program to find Factorial of a number using recursion in C++

Solution

#include <iostream>

using namespace std;

int factorial(int n)
{
    if(n==1)
      return 1;
    else
      return n*factorial(n-1);
}
 
int main()
{
    int n,ans;
    cout<<"Enter a number ";
    cin>>n;
    ans = factorial(n);
    cout << "Factorial of  "<< n<<" is "<<ans;
    return 0;
}

Output :

Enter a number 5
Factorial of  5 is 120