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Program Discussion :: Basics
Home > Programs > Basics

90. Write a recursive function to find the factorial of a number.

Answer:

#include<iostream>

using namespace std;
int factorial(int n);
int main()
{
    int n;
    cout << "Enter a positive integer: ";
    cin >> n;
    cout << "Factorial of " << n << " = " << factorial(n);
    return 0;
}
int factorial(int n)
{
    if(n > 1)
        return n * factorial(n - 1);
    else
        return 1;
}

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