已知由关键码序列(5,6,12,19,28,20,15,22)构成的最小堆,在插入关键码3后调整得到的最小堆是() (3,5,12,6,28,20,15,22,19) (3,5,6,12,28,20,22,15,19) (3,5,6,12,15,19,20,22,28) (28,22,20,19,15,12,6,5,3)
(3,5,12,6,28,20,15,22,19)
(3,5,6,12,28,20,22,15,19)
(3,5,6,12,15,19,20,22,28)
(28,22,20,19,15,12,6,5,3)