Update cv6/a_station.c
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							| @ -1,95 +1,95 @@ | |||||||
| 
 | #include "a_station.h" | ||||||
| #include <stdio.h> |  | ||||||
| #include <stdlib.h> | #include <stdlib.h> | ||||||
| #include <string.h> | #include <string.h> | ||||||
| #include "a_station.h" |  | ||||||
| 
 | 
 | ||||||
| // Функция для создания новой станции
 | // Создаёт пустую станцию
 | ||||||
| struct station* create_station() { | struct station* create_station() { | ||||||
|     struct station* station = calloc(1, sizeof(struct station)); |     struct station* station = (struct station*)calloc(1, sizeof(struct station)); | ||||||
|     station->tracks = calloc(STATION_SIZE, sizeof(struct car*)); |     station->tracks = (struct car**)calloc(STATION_SIZE, sizeof(struct car*)); | ||||||
|     station->track_count = STATION_SIZE; |     station->track_count = STATION_SIZE; | ||||||
|     return station; |     return station; | ||||||
| } | } | ||||||
| 
 | 
 | ||||||
| // Функция для вычисления индекса колеи на основе названия станции
 | // Освобождает всю память
 | ||||||
| int select_track(struct station* station, const char* target) { |  | ||||||
|     int hash = 0; |  | ||||||
|     while (*target) { |  | ||||||
|         hash += (unsigned char)(*target++); |  | ||||||
|     } |  | ||||||
|     return hash % station->track_count; |  | ||||||
| } |  | ||||||
| 
 |  | ||||||
| // Функция для добавления записи о вместимости станции
 |  | ||||||
| void add_target_capacity(struct station* station, const char* target, int capacity) { |  | ||||||
|     int track = select_track(station, target); |  | ||||||
|     struct car* current = station->tracks[track]; |  | ||||||
|     struct car* prev = NULL; |  | ||||||
| 
 |  | ||||||
|     // Поиск станции в цепочке
 |  | ||||||
|     while (current != NULL) { |  | ||||||
|         if (strcmp(current->value, target) == 0) { |  | ||||||
|             current->capacity += capacity;  // Обновляем вместимость
 |  | ||||||
|             return; |  | ||||||
|         } |  | ||||||
|         prev = current; |  | ||||||
|         current = current->next; |  | ||||||
|     } |  | ||||||
| 
 |  | ||||||
|     // Если станции не существует, создаем новый элемент
 |  | ||||||
|     struct car* new_car = malloc(sizeof(struct car)); |  | ||||||
|     new_car->capacity = capacity; |  | ||||||
|     strcpy(new_car->value, target); |  | ||||||
|     new_car->next = NULL; |  | ||||||
| 
 |  | ||||||
|     // Добавляем новый элемент в цепочку
 |  | ||||||
|     if (prev == NULL) { |  | ||||||
|         station->tracks[track] = new_car; |  | ||||||
|     } else { |  | ||||||
|         prev->next = new_car; |  | ||||||
|     } |  | ||||||
| } |  | ||||||
| 
 |  | ||||||
| // Функция для поиска вместимости станции по названию
 |  | ||||||
| int find_capacity(struct station* station, const char* target) { |  | ||||||
|     int track = select_track(station, target); |  | ||||||
|     struct car* current = station->tracks[track]; |  | ||||||
| 
 |  | ||||||
|     // Поиск элемента в цепочке
 |  | ||||||
|     while (current != NULL) { |  | ||||||
|         if (strcmp(current->value, target) == 0) { |  | ||||||
|             return current->capacity; |  | ||||||
|         } |  | ||||||
|         current = current->next; |  | ||||||
|     } |  | ||||||
|     return -1;  // Если станция не найдена, возвращаем -1
 |  | ||||||
| } |  | ||||||
| 
 |  | ||||||
| // Функция для освобождения памяти, выделенной для станции
 |  | ||||||
| void destroy_station(struct station* station) { | void destroy_station(struct station* station) { | ||||||
|     for (int i = 0; i < station->track_count; i++) { |     for (int i = 0; i < station->track_count; i++) { | ||||||
|         struct car* current = station->tracks[i]; |         struct car* current = station->tracks[i]; | ||||||
|         while (current != NULL) { |         while (current) { | ||||||
|             struct car* temp = current; |             struct car* to_free = current; | ||||||
|             current = current->next; |             current = current->next; | ||||||
|             free(temp); |             free(to_free); | ||||||
|         } |         } | ||||||
|     } |     } | ||||||
|     free(station->tracks); |     free(station->tracks); | ||||||
|     free(station); |     free(station); | ||||||
| } | } | ||||||
| 
 | 
 | ||||||
| // Функция для вывода информации о станции
 | // Хеш-функция для выбора пути на основе названия конечной станции
 | ||||||
| void print_station(struct station* station) { | int select_track(struct station* station, const char* target) { | ||||||
|     printf("station>>>\n"); |     int hash = 0; | ||||||
|  |     for (int i = 0; target[i] != '\0'; i++) { | ||||||
|  |         hash = (hash + target[i]) % station->track_count; | ||||||
|  |     } | ||||||
|  |     return hash; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | // Добавляет количество пассажиров для указанной станции
 | ||||||
|  | void add_target_capacity(struct station* station, const char* target, int capacity) { | ||||||
|  |     int index = select_track(station, target); | ||||||
|  |     struct car* current = station->tracks[index]; | ||||||
|  |      | ||||||
|  |     while (current) { | ||||||
|  |         if (strcmp(current->value, target) == 0) { | ||||||
|  |             current->capacity += capacity; | ||||||
|  |             return; | ||||||
|  |         } | ||||||
|  |         current = current->next; | ||||||
|  |     } | ||||||
|  |      | ||||||
|  |     struct car* new_car = (struct car*)malloc(sizeof(struct car)); | ||||||
|  |     strncpy(new_car->value, target, TARGET_SIZE - 1); | ||||||
|  |     new_car->value[TARGET_SIZE - 1] = '\0'; | ||||||
|  |     new_car->capacity = capacity; | ||||||
|  |     new_car->next = station->tracks[index]; | ||||||
|  |     station->tracks[index] = new_car; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | // Получает количество пассажиров для указанной станции
 | ||||||
|  | int get_target_capacity(struct station* station, const char* target) { | ||||||
|  |     int index = select_track(station, target); | ||||||
|  |     struct car* current = station->tracks[index]; | ||||||
|  |      | ||||||
|  |     while (current) { | ||||||
|  |         if (strcmp(current->value, target) == 0) { | ||||||
|  |             return current->capacity; | ||||||
|  |         } | ||||||
|  |         current = current->next; | ||||||
|  |     } | ||||||
|  |     return 0; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | // Считает количество конечных станций
 | ||||||
|  | int count_targets(struct station* station) { | ||||||
|  |     int count = 0; | ||||||
|     for (int i = 0; i < station->track_count; i++) { |     for (int i = 0; i < station->track_count; i++) { | ||||||
|         struct car* current = station->tracks[i]; |         struct car* current = station->tracks[i]; | ||||||
|         while (current != NULL) { |         while (current) { | ||||||
|             printf("%s %d -> ", current->value, current->capacity); |             count++; | ||||||
|             current = current->next; |             current = current->next; | ||||||
|         } |         } | ||||||
|         printf("NULL\n"); |  | ||||||
|     } |     } | ||||||
|     printf("<<<station\n"); |     return count; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | // Считает общую вместимость всех записей
 | ||||||
|  | int count_capacity(struct station* station) { | ||||||
|  |     int total_capacity = 0; | ||||||
|  |     for (int i = 0; i < station->track_count; i++) { | ||||||
|  |         struct car* current = station->tracks[i]; | ||||||
|  |         while (current) { | ||||||
|  |             total_capacity += current->capacity; | ||||||
|  |             current = current->next; | ||||||
|  |         } | ||||||
|  |     } | ||||||
|  |     return total_capacity; | ||||||
| } | } | ||||||
|  | |||||||
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