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typedef int QueueType; struct LinkQueue {

QueueType key;

struct LinkQueue *next; };

typedef struct queueNode{

struct LinkQueue *head;//¶ÓÁеÄÍ·Ö¸Õë struct LinkQueue *end; //¶ÓÁеÄβָÕë }Queue;

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Queue createQueue() { Queue queue; queue.head = 0; queue.end = 0; return queue; }

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int isEmpty(Queue queue) {

if (queue.head == 0) return 0; else

return 1; }

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int getFirst(Queue queue, QueueType& elem) {

if (queue.head == 0) return 0;

elem = queue.head->key; return 1; }

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int exitQueue(Queue& queue, QueueType& val) { if (isEmpty(queue) == 0) //¿Õ¶ÓÁÐ return 0;

struct LinkQueue* node = queue.head; queue.head = node->next; node->next = 0; val = node->key; free(node);

if (queue.head == 0) queue.end = 0; return 1; }

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int enterQueue(Queue& queue, QueueType key) {

struct LinkQueue* node = (struct LinkQueue*) malloc( sizeof(struct LinkQueue)); if (node == NULL) return 0; node->key = key; node->next = 0;

if (queue.end == 0) { queue.end = node; } else {//Ð޸ĶÓβָÕë

queue.end->next = node; queue.end = node; }

if (queue.head == 0) { queue.head = node; }

return 1; }

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#ifndef QUEUE_H_ #define QUEUE_H_

typedef int QueueType; struct LinkQueue { QueueType key;

struct LinkQueue *next; };

typedef struct queueNode {

struct LinkQueue *head; //¶ÓÁеÄÍ·Ö¸Õë struct LinkQueue *end; //¶ÓÁеÄβָÕë } Queue;

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Queue createQueue();

Åж϶ÓÁÐÊÇ·ñÊÇ¿Õ int isEmpty(Queue);