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Commit 2d0b16c

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formatting the former commit
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‎problems/二叉树的递归遍历.md‎

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@@ -189,6 +189,7 @@ class Solution:
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res.append(node.val)
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dfs(node.left)
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dfs(node.right)
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dfs(root)
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return res
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@@ -206,7 +207,7 @@ class Solution:
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dfs(node.left)
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res.append(node.val)
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dfs(node.right)
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dfs(root)
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return res
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```
@@ -225,6 +226,7 @@ class Solution:
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dfs(node.left)
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dfs(node.right)
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res.append(node.val)
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dfs(root)
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return res
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```

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