/* 
 * This code is from "Algorithms in C, Third Edition,"
 * by Robert Sedgewick, Addison Wesley Longman, 1998.
 */
typedef struct queue *Q;
void QUEUEdump(Q);
   Q QUEUEinit(int maxN);
 int QUEUEempty(Q);
void QUEUEput(Q, Item);
Item QUEUEget(Q);