25.向一个栈顶指针为top的链栈中插入一个结点,则执行( )。
A: s->next=top;top=s
B: s->next=top->next; top->next =s
C: top->next =s
D: s->next=top; top=top->next
A: s->next=top;top=s
B: s->next=top->next; top->next =s
C: top->next =s
D: s->next=top; top=top->next
举一反三
- 设带有头结点链栈,其栈项指针为top,向链栈中插入一个s结点时,则执行() A: s->next=top->next; top->next=s B: s->next=top->next; top=s C: s->next=top; top->next=s D: top->next=s; s->next=top->next
- 已知带头结点的链栈top, 则元素x对应的新结点s进栈操作的语句是() A: s->next=top->next;top->next=s; B: top->next=s; s->next=top->next; C: s->next=top;top =s; D: top =s; s->next=top;
- 1、已知带头结点的链栈top, 则该链栈不空时, 出栈操作的语句是( ) A: top->next=top->next->next; *x=top->next->data; B: top->next=top->next->next; *x=top->next->data; C: *x=top ->data;p=top;top =p->next;free(p); D: *x=top ->data;p=top;top =p->next;free(p);
- 假定一个链栈的栈顶指针用top表示,当p指向的结点进栈时,执行的操作为( )。 A: p->next=top; top=top->next; B: top=p; p->next=top; C: p->next=top->next; top->next=p ; D: p->next=top; top=p;
- 已知带头结点的链栈top, 则该链栈不空时, 出栈操作的语句是( ) A: top->next=top->next->next; *x=top->next->data; B: *x=top->next->data; top->next=top->next->next; free(top->next); C: *x=top ->data;p=top;top =p->next;free(p); D: *x=top->next->data;p=top->next;top->next=p->next;free(p);