Why does my code work in the test environment but can not be accepted when submitting?


  • 0
    J
    # Definition for a binary tree node.
    # class TreeNode(object):
    #     def __init__(self, x):
    #         self.val = x
    #         self.left = None
    #         self.right = None
    
    class Solution(object):
        def convertBST(self, root, sumVal = [0]):
            """
            :type root: TreeNode
            :rtype: TreeNode
            """
            if root:
                self.convertBST(root.right, sumVal)
                sumVal[0], root.val = sumVal[0] + root.val, sumVal[0] + root.val
                self.convertBST(root.left, sumVal)
            return root
    

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