请教大家两个数据结构的题
1.若一组记录的关键字为(53, 87, 12, 61,98,17, 97, 75, 53, 26 ),则利用希尔排序(增量d[1]=5),经过第一次排序后的结果是:
A)(17,53,87,97,12,75,53,61,12,98)
B)(17,87,12,53,26,53,97,75,61,98)
C)(12,17,26,53,53,61,75,87,97,98)
D)(53,17,12,61,53,26,97,75,98,87)
17.下列关键字序列中___是堆
A.94,23,31,72,16,53 B.16,72,31,23,94,53
C.16,23,53,31,94,72 D.16,53,23,94,31,72