#include "types.h"
#include "stat.h"
#include "user.h"

int
main(int argc, char **argv)
{
  if(argc < 3){
    printf(2, "usage: nice pid priority\n");
    exit();
  }
  if (setpriority(atoi(argv[1]), atoi(argv[2])) < 0) {
    printf(2, "failed to set priority.");
  }
  exit();
}