对下图所示的二叉树进行顺序存储（根结点编号为1，对于编号为i的结点，其左孩子结点为2i，右孩子结点为2i+1）并用一维数组BT来表示，已知结点X、E和D在数组BT中的下标分别为1、2、3, 可推出结点G、K和H在数组BT中的下标分别为（ ）。
- A.10、11、12
- B.12、24、25
- C.11、12、13
- D.11、22、23
正确答案及解析
正确答案
解析
元素G为F的右子树，其下标为2F+1；F为元素E的右子树，其下标为2E+1，E的下标为2，因此G=2*（2*2+1）+1=11；K=2G=22；H=2G+1=23；
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