tutuuuuuuuuuuuuuuuuuuuuuuuuur

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h>

int main (int argc, char *const argv[], char *const envp[])
{
int t = strtol(argv[1],NULL,10);
for (int i = 0; i < t; i++) {
  pid_t res = fork();
  if (res ==0) {
    execvpe(argv[2],argv+2,envp);
  }
  else if(res>0){
    wait(NULL);
  }
}
struct rusage stat;
if (getrusage(RUSAGE_CHILDREN,&stat) == -1) {
fprintf(stderr, "Cannot get ressource usage %s\n",strerror(errno) );
exit(EXIT_FAILURE);
}
printf("User Cpu time %ld:%.21d seconds\n",stat.ru_utime.tv_sec/t,(stat.ru_utime.tv_usec/t));
printf("User Cpu time %ld:%.21d seconds\n",stat.ru_stime.tv_sec/t,(stat.ru_stime.tv_usec/t));

exit(0);
}