Create 链队出队操作（不带头结点）.c

队列/链队出队操作（不带头结点）.c

@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h> 
+#include <stdbool.h>
+
+typedef struct Node{
+	int data;
+	struct Node *next;
+}LinkNode;
+typedef struct Queue{
+	LinkNode *front,*rear;
+}LinkQueue;
+
+//初始化队列(不带头结点)
+void InitQueue(LinkQueue *Q){
+	Q->front = NULL;
+	Q->rear = NULL;
+}
+//判断队列是否为空
+bool IsEmpty(LinkQueue Q){
+	if(Q.front==NULL){ 
+		return true;
+	}else{
+		return false;
+	}
+}
+//入队(不带头结点)
+void EnQueue(LinkQueue *Q,int x){
+	LinkNode *s = (LinkNode*)malloc(sizeof(LinkNode));
+	s->data = x;
+	s->next = NULL;
+	if(IsEmpty(*Q)){
+		Q->rear = s;
+		Q->front = s;
+	}else{
+		Q->rear->next = s;
+		Q->rear = s;
+	}
+}
+//出队(不带头结点)
+bool DeQueue(LinkQueue *Q){
+	if(IsEmpty(*Q)){
+		printf("当前链队为空，无法出队\n");
+		return false;
+	}
+	LinkNode *p = Q->front;
+	int x = p->data;
+	printf("当前出队的元素为：%d\n",x);
+	Q->front = p->next;
+	free(p);
+	return true;
+}
+
+int main(){
+	LinkQueue Q;
+	InitQueue(&Q);
+	printf("队列是否为空：%d\n",IsEmpty(Q));
+	for(int i=0;i<=10;i++){
+		EnQueue(&Q,i);
+	}
+	for(int i=0;i<=11;i++){
+		DeQueue(&Q);
+	}
+	printf("队列是否为空：%d\n",IsEmpty(Q));
+	return 0;
+}