设要将序列(Q, H, C, Y, P, A, M, S, R, D, F, X)中的关键码按字母序的升序重新排列,堆排序初始建堆的结果是
A.
Y S X R P C M H Q D F A
B.
H Q C Y A P M S D R F X
C.
H C Q P A M S R D F X Y
D.
F H C D P A M Q R S Y X
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