学步园

需求：

线性表A、线性表B 都是循环链表存储结构,将B链表链接到A链表的后面,合并成一个链表。

#include<malloc.h>
#include<stdio.h>
typedef struct node{
	int data;
	struct node *next;
}NODE;
NODE *create_circular(){
	NODE *head,*q,*p;
	int a,n;
	head = (NODE *)malloc(sizeof(NODE));
	q = head;
	printf("\n Input number of the list：");
	scanf("%d",&n);
	head ->data = n; /*表头结点赋值n,即表中结点的个数*/
	if(n>0){
		printf("Input the list：");
		while(n>0){
			scanf("%d",&a); /*输入新元素*/
			p = (NODE *)malloc(sizeof(NODE));
			p->data = a;
			q->next = p;
			q = p;
			n--;
		}
		q->next=head;
		return (head);
	}
}
//方法需要放在被调用之前
void print(NODE *head){
	NODE *p;
	p = head->next;
	printf("output the list of parame:");
	while(p != NULL && p->next!=head){
		printf("%3d",p->data);
		p=p->next;
	}
}


NODE *connect(NODE *head1,NODE *head2){/*把循环列表a和b合并成一个循环链表。head1和head2分别为两个循环列表的头指针*/
	NODE *p,*q;
	p= head1 ->next; /*指针head1头结点赋值给p*/
//	printf("%2d",p->data);
	while(p->next!=head1)/*查找head1的最后一个结点*/
		p=p->next; 
//	printf("%2d",p->data); /*此时p为head1最后一个结点*/
	q= head2 ->next;
	while(q->next!=head2)/*查找head2的最后一个结点*/
		q=q->next;

	p->next = head2->next; /*AB两表链接*/

	q->next = head1;

	free(head2);/*释放B表表头结点*/
	return(head1);
}

main(){
	NODE *a,*b,*c,*d;
	a = create_circular();
	b = create_circular();
	c= connect(a,b);
	d = c;
	printf("\n Output the list"); /*输出链表后的整个链表*/
	while(d->next !=c){
		d = d->next;
		printf("%3d",d->data);
	}
}