Created
April 9, 2018 20:36
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class Solution(object): | |
def convertBST(self, root): | |
""" | |
:type root: TreeNode | |
:rtype: TreeNode | |
""" | |
self.val=0 | |
def traverse(root): | |
if root: | |
traverse(root.right) | |
root.val+=self.val | |
self.val=root.val | |
traverse(root.left) | |
traverse(root) | |
return root |
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