单项选择题
A.O(log2n) B.O(n) C.O(nlog2/t) D. O(n2)
A.2 B.3 C.4 D.5
A.(10,50,80,30,60,20,15,18) B.(10,18,15,20,50,80,30,60) C.(10,15,18,50,80,30,60,20) D.(10,30,60,20,15,18,50,80)