given postorder and inorder,output preorder

[sirrunrun]

solved

[sirrunrun]

please help~

[TarikNeaj]

I honestly have no clue of what you want, all these preorder, inorder, postorder.

input format:
DBACEGF ABCDEFG
BCAD CBAD
Output format:
ACBFGED
CDAB

I also dont get this. How does the input create that output and why?

[sirrunrun]

give you as a reference
http://blog.csdn.net/u012315428/article/details/12777765