Dinamic massive (homework)

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

struct element {
    int val;
    struct element *p;
};

int main(int argc, char *argv[]) {
    struct element *top, *elem;
    int N=10,i;
    elem=(struct element *)malloc(N*sizeof(struct element));
    srand(time(NULL));

    for (i=0;i<N-1;i++) {
        (elem+i)->val=rand()%100+1;
        (elem+i)->p=(elem+i+1);
    }
    (elem+N-1)->p=elem;
    top=elem;

    while (top) {
        printf("%d",top->val);
        top=top->p;
        getchar();
    }

    return 0;
}