2.
假設(shè)以數(shù)組A[m]存放循環(huán)隊(duì)列的元素,其頭尾指針分別為front 和rear,則當(dāng)前隊(duì)列中的元素個(gè)數(shù)為()
A:(rear-front+m)%m
B:rear-front+1
C:(front-rear+m)%m
D:(rear-front)%m
3.
己知循環(huán)隊(duì)列存儲(chǔ)在一維數(shù)組A[O…n-1］中,且隊(duì)列非空時(shí)front和rear分別指向隊(duì)頭元素和隊(duì)尾元索.若初始時(shí)隊(duì)列為空,且要求第1個(gè)進(jìn)入隊(duì)列的元素存儲(chǔ)在A[0］處,則初始時(shí)front和rear的值分別是.
A.0,0B.0,n-1 C.n-l,0 D.n-1,n-l