/* 
 * This code is from "Algorithms in C, Third Edition,"
 * by Robert Sedgewick, Addison Wesley Longman, 1998.
 */
typedef struct node* link;
struct node { int item; link next; };
typedef link Node;
void initNodes(int);
link newNode(int);
void freeNode(link);
void insertNext(link, link);
link deleteNext(link);
link Next(link);
 int Item(link);