#include <stdio.h>
#include <stdlib.h>
#define LENGTH 10
#define RANGE 10
void init(int *arr)
{
*(arr+LENGTH) = -1;
while(*arr != -1) *(arr++) = rand()%RANGE;
}
void show(int *arr)
{
while(*arr != -1) printf("%d ", *(arr++));
puts("");
}
int main(void)
{
int *arr = malloc(sizeof(int) * LENGTH);
init(arr);
show(arr);
return 0;
}