Program to print factorial of any input number using do while loop in C.

Code Box
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/*Program to print factorial of any input number*/

#include<stdio.h>
#include<conio.h>
void main()
{
int num;
float fact;
/* If we take fact as integer, it can not be able
to store factorial of value greater than 9 */
fact=1.0;
clrscr();

printf("\nEnter any number:");
scanf("%d",&num);

clrscr();  //for clear screen

printf("\n-------------------------------");
printf("\nNumber entered is: %d",num);
printf("\n-------------------------------");
printf("\nFactorial of %d is:",num);
printf("\n-----------------------------\n");

do
{
if(num==0)
{
printf("\n1"); //factorial of 0 is 1
break;
}
fact=fact*num;
num--;
}while(num>=1);

printf("\n%.0f",fact);

printf("\n------------------------------");

getch();
}