recursive function in c
/*
Program: Factorial of a given number using recursive function.
Author: Codesansar
Date: Jan 22, 2018
*/
#include<stdio.h>
#include<conio.h>
int fact(int n); /* Function Definition */
void main()
{
int num, res;
clrscr();
printf("Enter positive integer: ");
scanf("%d",&num);
res = fact(num); /* Normal Function Call */
printf("%d! = %d" ,num ,res);
getch();
}
int fact(int n) /* Function Definition */
{
int f=1;
if(n <= 0)
{
return(1);
}
else
{
f = n * fact(n-1); /* Recursive Function Call as fact() calls itself */
return(f);
}
}