#1738. 二叉树遍历(flist)
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ID: 1738
Type: Default
1000ms
128MiB
Tried: 0
Accepted: 0
Difficulty: (None)
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二叉树遍历(flist)
说明
输出格式
输出文件 flist.out 就一行，表示二叉树的先序序列。
样例
DBEAC
ABCDE
ABDEC