N factorial

Factorial

unsigned long long factorial(unsigned long long num){

    if(num<=0)
        return 1;

    return num * factorial(num-1);
}

N factorial

def factorial(n):
    if n == 1:
        return 1
    else:
        return n*factorial(n - 1)

print(factorial(3))
print(factorial(4))
print(factorial(5))

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