计算机学科专业基础2016 真题档案

p->next->prev = p->prev; p->prev->next = p->prev; free(p);

p->next->prev = p->next; p->prev->next = p->next; free(p);

p->next->prev = p->next; p->prev->next = p->prev; free(p);

p->next->prev = p->prev; p->prev->next = p->next; free(p);