※ 引述《ilikesg (SG )》之銘言:
: Using tree1 and tree2, shown here,
: show separately, the result of the calls:
: 程式碼:
: http://tinyurl.com/2dbryu7
: tree1如下圖
: http://tinyurl.com/2b8fdy9
: tree2如下圖
: http://tinyurl.com/25f6q4y
tree1
--------
H
D
G
E
S
I
T
R
L
tree2
--------
A
I
G
H
F
E
D
C
B
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