Recursion using function in C++

The program is calculating the factorial of a number using recursion. The factorial function takes an integer n as input and returns its factorial. If n is greater than 1, the function calls itself with n-1 as input and multiplies the result with n to get the factorial of n. If n is 1 or less, it returns 1, which is the factorial of 0 and 1. In the main function, it takes the input number from the user, calls the factorial function to calculate its factorial, and displays the result

Source Code

#include <iostream>
using namespace std;
int factorial(int);
int main()
{
    int n,result;
    cout<<"Enter a number: ";
    cin>>n;
    result=factorial(n);
    cout<<"Factorial of "<<n<<" = "<<result;
    return 0;
}
int factorial(int n)
{
    if(n>1)
    {
        return n*factorial(n-1);
    }
    else
    {
        return 1;
    }
}

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Output

Enter a number: 10
Factorial of 10 = 3628800

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