recursive function

-

 // using copy of the function inside the function is called recursion or recursive function

#include <stdio.h>
int factorial(int n);
int main()
{
    int n,fact;
    printf("enter no of which u want factorial:");
    scanf("%d",&n);
    fact=factorial(n);
    printf("factorial of %d is %d",n,fact);
    return 0;
}
int factorial(int n)
{
    if(n==0 || n==1)
    {
        return 1;
    }
    else
    {
       return n*factorial(n-1);
    }
}

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