thx i know ald
Code:
/* RAND.C: This program seeds the random-number generator
* with the GetTickCount, then displays 10 random integers.
 */

#include <stdlib.h>
#include <stdio.h>
#include <winbase.h>

void main( void )
{
   int i;
   /* Seed the random-number generator with GetTickCount so that
      the numbers will be different every time we run.
       */
   srand(
       GetTickCount() 
         );
   /* Display 10 numbers. */
   for(
         i = 0;   i < 10;i++ 
        )
   printf(
         "%6d\n", rand() 
        );
   }