题目内容:
用数组A[0,N-1]存放循环队列的元素值,若其头指针和尾指针分别为front和rear,则循环队列中当前元素的个数为
A.(rear-front+N+1)mod N
B.(rear-front+1)mod N
C.(rear-front-1+N)mod N
D.(rear-front)mod N
参考答案:【答案仅供学习,请勿对照自行用药等】
用数组A[0,N-1]存放循环队列的元素值,若其头指针和尾指针分别为front和rear,则循环队列中当前元素的个数为
A.(rear-front+N+1)mod N
B.(rear-front+1)mod N
C.(rear-front-1+N)mod N
D.(rear-front)mod N