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2020-04-01 Day 39 Leetcode: 94.

2020-04-01 Day 39 Leetcode: 94.

作者: YueTan | 来源:发表于2020-04-01 08:59 被阅读0次
class Solution:
    
    def inorderTraversal(self, root: TreeNode) -> List[int]:
        result=[]
        self.helper(root,result)
        return result
        
    def helper(self,root,result):
        if root is None:
            return
        self.helper(root.left,result)
        result.append(root.val)
        self.helper(root.right,result)

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