#include <stdio.h>
#include <stdlib.h>
typedef struct list {
    char cod[20];
    float pret;
    enum{telefon, unitate, tableta}tip;
    struct list *urm;
}depozit;


int main()
{
    depozit *head = NULL, *p = NULL;

    int opt, ok, i;

    do {
        printf("1. Introducere echipament nou\n");
        printf("2. Afisare lista\n");
        printf("3. Schimbare paritate bit\n");
        printf("4. Iesire\n");
        printf("4. Optiunea aleasa: ");
        scanf("%d", &opt);
        switch (opt) {
        case 1:
            p = head;
            head = (depozit *)malloc(sizeof(depozit));
            head->urm = NULL;
            do{
                ok = 0;
                printf("Cod: "); scanf("%s", head-> cod);
                if (head->cod[0] >= '0' && head->cod[0] <= '9' && head->cod[1] >= 'a' && head->cod[1] <= 'z' && head->cod[2] == '-') {
                    for (i = 3; head->cod[i]; i++)
                    if (head->cod[i] < '0' || head->cod[i] > '9') break;
                    if (head->cod[i] == 0)
                        ok = 1;
                }
            } while (ok == 0);
            printf("Pret: "); scanf("%f", &head->pret);
            printf("Tip: "); scanf("%d", &head->tip);
            head->urm = p;
            break;
        case 2:
            p = head;
            while (p) {
                printf("Cod produs %s \n", p->cod);
                printf("Pret de vanzare %f \n", p->pret * 1.15);
                printf("Tip %d \n", p->tip);
                p = p->urm;
            }
            break;
        case 4: return 0;
        }
    } while (1);
}