easy understand python solution


  • 0
    B

    Just Level Order Traversal the binary tree

    # 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 rightSideView(self, root):
            """
            :type root: TreeNode
            :rtype: List[int]
            """
            if not root:
                return []
            res, level = [], [root]
            while level:
                res.append([node.val for node in level])
                temp = []
                for node in level:
                    temp.append(node.left)
                    temp.append(node.right)
                level = [node for node in temp if node]
            return [x[-1] for x in res]
    

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