The above tree is represented on the computer as follows:以上树在计算机中表示如下:
The content of parent[] in the third line should be:第三行中parent[]的内容应该是:
A0, 5, -1, 7, 0, 5, 4, 7, 0, 7
B-1, 5, 5, 7, 0, 4, 5, 0, 0, 7
C0, 1, 2, 3, 4, 5, 6, 7, 8, 9
D-1, 7, 5, 2, 5, 4, 1, -1, 0, 7