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Изменил(а) на 'cv7/a_station.c'

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Oleksandr Hryshchenko 2021-11-19 00:26:44 +00:00
parent 6e200a1ac9
commit 298918db19
1 changed files with 54 additions and 17 deletions
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71
cv7/a_station.c
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@ -2,39 +2,76 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
//#define SIZE 100;
struct station* create_station(){ struct station* create_station(){
struct station* station = (struct station*)calloc(1,sizeof(struct station)); struct station* station = (struct station*)calloc(1,sizeof(struct station));
station->tracks = (struct car**)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;
} }
void destroy_station(struct station* station){ void destroy_station(struct station* station){
free(station->tracks);
free(station);
} }
int select_track(struct station* station, const char* target){ int select_track(struct station* station, const char* target){
if(!station || station->track_count == 0)
return 0; return 0;
int hash_result = (int)strlen(target) % station->track_count;
struct car* current = station->tracks[hash_result];
while(current != NULL && abs(strcmp(station->tracks[hash_result]->value, target))){
hash_result = (hash_result * 2 + 1) % station->track_count;
current = station->tracks[hash_result];
}
return hash_result;
} }
void add_target_capacity(struct station* station,const char* target, int capacity){ void add_target_capacity(struct station* station,const char* target, int capacity){
if(!station || station->track_count == 0)
return;
int myTrack = select_track(station, target);
struct car* uniqueCar = station->tracks[myTrack];
if(!uniqueCar) {
uniqueCar = (struct car *) calloc(1, sizeof(struct car));
uniqueCar->capacity = 0;
strcpy(uniqueCar->value, target);
uniqueCar->next = NULL;
}
uniqueCar->capacity += capacity;
station->tracks[myTrack] = uniqueCar;
} }
int get_target_capacity(struct station* station,const char* target){ int get_target_capacity(struct station* station,const char* target){
if(!station || station->track_count == 0 || station->tracks[select_track(station, target)] == NULL)
return 0; return 0;
return station->tracks[select_track(station, target)]->capacity;
} }
int count_targets(struct station* station){ int count_targets(struct station* station){
if(!station || station->track_count == 0)
return 0;
return 0;
int numberOfTargets = 0;
for(int i = 0; i < station->track_count; i++)
numberOfTargets += (station->tracks[i] == NULL) ? 0 : 1;
return numberOfTargets;
} }
int count_capacity(struct station* station){ int count_capacity(struct station* station){
if(!station || station->track_count == 0)
return 0; return 0;
}
int totalCapacity = 0;
for(int i = 0; i < station->track_count; i++)
totalCapacity += (station->tracks[i] == NULL) ? 0 : station->tracks[i]->capacity;
return totalCapacity;
}