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-
- typedef struct PQ
- {
- char *heap;
- char *bottom;
- int nitems;
- int maxitem;
- int itemsize;
- int (*cmp)();
- int (*swap)();
- } PQ;
-
- extern void reheap_down(struct PQ *p);
- extern void reheap_up(struct PQ *p);
- extern struct PQ *pq_create(int numele,int elesize,int (*cmp)(),void (*swap)(),void *initheap);
- extern int pq_ins(struct PQ *p,void *item);
- extern int pq_del(struct PQ *p,void *target);
- extern char *pq_look(struct PQ *p);
- extern int pq_numele(struct PQ *p);
-