2 Write an algorithm to print the factorial of a given number?

Answer 1

include<stdio.h>

main()

{

int n,fact=1;

clrscr();

printf("enter a no");

scanf("%d",&n);

while(n>0)

{

fact=fact*n;

n--;

}

printf("the factorial of given no is %d",fact);

getch();

}

Answer 2

int n, f=1;

printf("Enter a number= ");

scanf(%d,&n);

while(n>1)

{

f=f*n;

n--;

}

printf("Factorial of number %d is %d",n,f);

}

Answer 3

#! /usr/bin/env ruby

def fac(n)

return 1 if n<=1

return n * fac(n-1)

end

puts fac(gets.to_i)

Answer 4

int fact (int n) {

if (n==0) return 1;

return n* fact(n-1);

}