A.O(n2) B.O(n) C.O(log2n) D.O(nlog2n)
A.30,28,20,12,18,16,4,10,2,6,8 B.20,30,28,12,18,4,16,10,2,8,6 C.2,6,4,10,8,28,16,30,20,12,18 D.2,4,10,6,12,28,16,20,8,30,18
A.1092 B.1088 C.1120 D.1124
A.试探 B.递推 C.枚举 D.分析