77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
#include "a_train.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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struct car* add_car(struct car* first, const char* target) {
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struct car* new_car = (struct car*)malloc(sizeof(struct car));
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if (new_car == NULL) {
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printf("Chyba: Nepodarilo sa alokovať pamäť pre nový vozeň.\n");
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return first;
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}
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strncpy(new_car->value, target, SIZE);
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new_car->next = NULL;
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if (first == NULL) {
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return new_car;
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}
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struct car* temp = first;
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while (temp->next != NULL) {
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temp = temp->next;
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}
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temp->next = new_car;
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return first;
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}
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void print_train(struct car* first) {
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if (first == NULL) {
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printf("Vlak je prazdny.\n");
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return;
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}
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struct car* temp = first;
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while (temp != NULL) {
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printf("Cielova stanica: %s\n", temp->value);
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temp = temp->next;
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}
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}
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void cancel_train(struct car* first) {
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struct car* temp;
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while (first != NULL) {
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temp = first;
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first = first->next;
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free(temp);
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}
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printf("Vsetky vozne boli zrusene.\n");
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}
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struct car* clear_train(struct car* first, const char* target) {
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struct car* current = first;
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struct car* previous = NULL;
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while (current != NULL) {
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// Porovnanie hodnoty cielovej stanice
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if (strcmp(current->value, target) == 0) {
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// Ak sa cielova stanica zhoduje, odstráni vozeň
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if (previous == NULL) {
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// Ak je to prvý vozeň
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first = current->next;
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} else {
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previous->next = current->next;
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}
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struct car* temp = current;
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current = current->next;
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free(temp);
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} else {
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// Ak sa nezhoduje, prejde na nasledujúci vozeň
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previous = current;
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current = current->next;
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}
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}
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return first;
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}
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