A、head->next==head
B、head->next==NULL
C、head!=NULL
D、head ==NULL
带头结点的单向链表为空的判断条件是( )(设头指针为head)。A.head = =NULLB.head!=NULLC.head->next= =headD.head->next= =NULL
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带头结点的链表为空的判断条件是()(设头指针为head)。A.head->next==NULLB.head->next==headC.head==NULLD.head!=NULL
若不带头结点的单链表的头指针为head,则该链表为空的判定条件是 ( )A.head==NULLB.head—>next==NULLC.head!=NULLD.head—>next==head
头指针为head的带头结点的循环链表为空的判定条件是()。A.head=nullB.head—>next=null C.head—>next=head D.head—>null
带头结点的链表为空的判断条件是()(设头指针为head)。Ahead->next==NULLBhead->next==headChead==NULLDhead!=NULL
带头结点的单向链表为空的判断条件是()(设头指针为head)。Ahead==NULLBhead!=NULLChead->next==headDhead->next==NULL
已知单链表的头指针为head且该链表不带头结点,则该单链表为空的条件是 。A.head== NULLB.head->next==NULLC.head->next==headD.head!=NULL