#include <time.h>
#include <stdio.h>
#include <conio.h>

double long fak = 1;
unsigned long fas = 1;
float i, n;
float fir, sec;

void main()
{clrscr();
printf("ætevilo? ");
scanf("%f", &n);
fir = clock();
if(n !=0)
{if(25<n)
{for (i = 2; i <= n; i++)
{fak *= i;}
printf("%f! = %lu\n", n, fak);}
else
{for (i = 2; i <= n; i++)
{fas*= i;}
printf("%f! = %lu\n", n, fas);}
sec = clock();
printf("Za raŸunanje sem porabil %f sekund", (sec-fir)/CLK_TCK);
//printf("%f",CLK_TCK);
getch();}
else;
}