FilesExpand file tree

master

/

10_preorder.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

17 lines (16 loc) · 482 Bytes

master

/

10_preorder.py

Copy path

Top

File metadata and controls

• Code
• Blame

17 lines (16 loc) · 482 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

#!/usr/bin/python

# class TreeNode:

# def __init__(self, x):

# self.val = x

# self.left = None

# self.right = None

class Solution:

# @param root, a tree node

# @return a list of integers

def preorderTraversal(self, root):

result = []

if root:

result.append(root.val)

result.extend(self.preorderTraversal(root.left))

result.extend(self.preorderTraversal(root.right))

return result