A. S->top!=0 B. S->top==0 C. S->top== m D. S->top-S->base >= m
A. 4、3、2、1 B. 1、2、3、4 C. 1、4、3、2 D. 3、2、4、1
A. QU->rear-QU->front == m B. QU->rear-QU->front-1 == m C. QU->front == QU->rear D. QU->front-QU->rear + 1==m
A. QU->front == QU->rear B. QU->front != QU->rear C. QU->front == (QU->rear + 1) %m D. QU->front != (QU->rear + 1) %m
A. (rear-front + m) %m B. (rear-front + 1+m)%m C. rear-front-1 D. rear-front
A. 都是先进后出 B. 都是先进先出 C. 只允许在端点处插入、删除元素 D. 没有共同点
A. f->next = s; f = s; B. r->next = s; r = s; C. s->next = r; r = s; D. s->next = f; f = s;
A. r = f->next; B. r = r->next; C. f = f->next; D. f = r->next;