数据结构
2018-11
在将数据序列(6,1,5,9,8,4,7)建成大根堆时，正确的序列变化过程是__。
A. 6, 1, 7, 9, 8, 4, 5 → 6, 9, 7, 1, 8, 4, 5 → 9, 6, 7, 1, 8, 4, 5 → 9, 8, 7, 1, 6, 4, 5
B. 6, 9, 5, 1, 8, 4, 7 → 6, 9, 7, 1, 8, 4, 5 → 9, 6, 7, 1, 8, 4, 5 → 9, 8, 7, 1, 6, 4, 5
C. 6, 9, 5, 1, 8, 4, 7 → 9, 6, 5, 1, 8, 4, 7 → 9, 6, 7, 1, 8, 4, 5 → 9, 8, 7, 1, 6, 4, 5
D. 6, 1, 7, 9, 8, 4, 5 → 7, 1, 6, 9, 8, 4, 5 → 7, 9, 6, 1, 8, 4, 5 → 9, 7, 6, 1, 8, 4, 5 → 9, 8, 6, 1, 7, 4, 5
答案
答案：A