5) Write a C program to find factorial value of no using Recursive function.

 source code: recfact.c

#include<stdio.h>

 int recfact(int n)
{
int f=1;
if(n==0)
return 1;
else
f=n*recfact(n-1);

return f;
}

int  main()
{
int n,fv;
//clrscr();
printf(" enter any no: \n");
scanf("%d",&n);
fv=recfact(n);
printf(" factorial value: %d ",fv);
//getch();

return 0;
}

 

output:

enter any no: 6

factorial value: 720