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typedef struct {
int cat; /* category number */
int node; /* node number */
} CENTER;
typedef struct {
int center; /* nearest center, initially -1 */
double cost; /* costs from this center, initially not defined */
int edge; /* edge to follow from this node */
} NODE;
int alloc_from_centers_loop_tt(struct Map_info *Map, NODE *Nodes,
CENTER *Centers, int ncenters, int tucfield);
int alloc_to_centers_loop_tt(struct Map_info *Map, NODE *Nodes, CENTER *Centers,
int ncenters, int tucfield);
int alloc_from_centers(dglGraph_s *graph, NODE *Nodes, CENTER *Centers,
int ncenters);
int alloc_to_centers(dglGraph_s *graph, NODE *Nodes, CENTER *Centers,
int ncenters);
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