• 2022-06-05
    判断一个队列QU(最多元素为MAXSIZE)为空的条件是( )
    A: QU->;rear-QU->;front= = MAXSIZE
    B: QU->;rear-QU->;front-1= =MAXSIZE
    C: QU->;front= =QU->;rear
    D: QU->;front= =QU->;rear+1