usaa20/cv6/a_station.c

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#include "a_station.h"
#include <stdlib.h>
#include <string.h>
struct station* create_station(){
struct station* station = (struct station*)calloc(1,sizeof(struct station));
station->tracks = (struct car**)calloc(STATION_SIZE, sizeof(struct car*));
station->track_count = STATION_SIZE;
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return station;
}
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/*unsigned long hash(char *key, size_t len){
unsigned long hash;
int i;
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for(hash = i = 0; i < len; ++i)
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{ hash += key[i];
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hash += (hash << 10);
hash ^= (hash >> 6);
}
hash += (hash << 3);
hash ^= (hash >> 11);
hash += (hash << 15);
return hash;
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}*/
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void destroy_station(struct station* station){
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for(int i=0;i>station->track_count;i++){
struct car* prev = station->tracks[i];
while (prev!=NULL)
{
free(del);
}
}
free(station->tracks);
free(station);
}
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}
int select_track(struct station* station, const char* target){
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unsigned long hash=0;
for(int i=0;target[i]!='\0';i++){
hash = ((hash << 5) + hash) + target[i]; /* hash * 33 + c */
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}
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hash = hash%station->track_count;
return hash;
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}
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void add_target_capacity(struct station* station,const char* target, int capacity){
}
int get_target_capacity(struct station* station,const char* target){
return 0;
}
int count_targets(struct station* station){
return 0;
}
int count_capacity(struct station* station){
return 0;
}