Parcare

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

typedef struct elem {
    char licensePlate[36];
    struct elem *urm;
}node;

node *root = NULL;
node *ultim = NULL;

node *create(char valoare[36]) {
    node *p;
    p = (node*)malloc(sizeof(node));
    strcpy(p->licensePlate, valoare);
    p->urm = NULL;
    return p;
}

node *add(node *nou) {
    nou->urm = root;
    root = nou;
    return root;
}

node *enterTheParking(char licensePlate[36]) {
    node *nou = create(licensePlate);
    if (root == NULL)
    {
        ultim = nou;
    }
    root = add(nou);
}


node *exitTheParking() {
    node *aux;
    if (root == NULL) {
        printf("The parking lot is empty!");
        return NULL;
    }
    else
    {
        aux = root;
    }
    root = root->urm;
    free(aux);
}


void showCars() {
    node *p;
    for (p = root; p!= NULL; p = p->urm) {
        printf("%s\n", p->licensePlate);
    }
}

int main()
{

    enterTheParking("BH14CAP");
    enterTheParking("BH10BXD");
    enterTheParking("HD09LBO");
    showCars();
    exitTheParking();
    showCars();
    return 0;
}