queue

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

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

void addElement(struct element **cur) {
    struct element *memory;
    memory=(struct element *) malloc(sizeof(struct element));
    memory->data=rand()%100+1;
    memory->p=NULL;
    if (*cur) {
        (*cur)->p=memory;
    }
    *cur=memory;
}

void removeElement(struct element **cur) {
    struct element *memory=(*cur)->p;
    free(*cur);
    *cur=memory;
}


int main()
{
    struct element *start=NULL, *end=NULL;
    addElement(&end);
    start=end;
    addElement(&end);
    addElement(&end);
    addElement(&end);
    removeElement(&start);
    removeElement(&start);
    while (end) {
        printf("%d\n",start->data);

        start=start->p;
    }
    return 0;
}