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Merge pull request #2512 from gggxxxx/XiongGu-branch
Add dfs function execution in the tree traversal (Python)
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@ -189,7 +189,8 @@ class Solution:
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res.append(node.val)
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res.append(node.val)
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dfs(node.left)
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dfs(node.left)
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dfs(node.right)
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dfs(node.right)
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dfs(root)
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return res
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return res
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```
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```
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@ -206,7 +207,8 @@ class Solution:
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dfs(node.left)
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dfs(node.left)
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res.append(node.val)
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res.append(node.val)
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dfs(node.right)
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dfs(node.right)
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dfs(root)
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return res
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return res
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```
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```
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```python
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```python
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@ -224,7 +226,8 @@ class Solution:
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dfs(node.left)
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dfs(node.left)
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dfs(node.right)
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dfs(node.right)
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res.append(node.val)
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res.append(node.val)
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dfs(root)
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return res
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return res
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```
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```
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