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循环链表--
2022-07-01 12:05:00 【Between the steps】
循环单链表
bool InitList(LinkList &L){
L=(LNode*)malloc (sizeof(LNode));
if(L==NULL){
return false;
}
L->next=L; //头结点next指向头结点
return true;
}
//判空
bool Empty(LinkList L){
if(L->next=L)
return true;
else
return false;
}
bool isTail(LinkList L){
if(L->next==L)
return true;
else
return false;
}
循环双链表
bool InitDLinkList(DLinkList &L){
L=(LNode*)malloc (sizeof(LNode)); //分配一个头结点
if(L==NULL){
return false;
}
L->prior=L; //头结点的prior指向头结点
L->next=L; //头结点next指向头结点
return true;
}
双链表的插入和删除 ,如果是循环双链表 ,不考虑尾结点的NULL

判断循环双链表是否为空 是否是尾结点
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