The code snippet defines a class Solution with a method leafSimilar that takes in two binary trees as input. It uses depth-first search (DFS) to traverse the trees and accumulate the leaf values. It then compares the leaf value sequences of both trees and

Leaf Similarity Check.md

Leaf Similarity Check

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from typing import Optional

class TreeNode:
    def __init__(self, val=0, left=None, right=None):
        self.val = val
        self.left = left
        self.right = right

def is_leaf_similar(root1: Optional[TreeNode], root2: Optional[TreeNode]) -> bool:
    def dfs(root):
        if root is None:
            return []
        
        leaves = dfs(root.left) + dfs(root.right)
        
        return leaves or [root.val]

    return dfs(root1) == dfs(root2)

Associated Context
Type	Code Snippet ( .py )
Associated Tags	Leaf Similarity Depth-First Search (DFS) Tree Traversal Recursive Function Left and Right Children Leaf Value Sequence Internal Node Recursion Algorithm Design numpy Solution class leafSimilar method root1 parameter root2 parameter dfs function TreeNode class Optional type hint leaf value leaf value sequence subtree's leaves
📝 Custom Description	Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
💡 Smart Description	This code snippet defines a class Solution with a function leafSimilar that takes two nodes as input and returns the value of each node in an array. It recursively explore all left and right children, accumulates their leaves by comparing its values to The code snippet defines a class Solution with a method leafSimilar that takes in two binary trees as input. It uses depth-first search (DFS) to traverse the trees and accumulate the leaf values. It then compares the leaf value sequences of both trees and
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Related Links	https://leetcode.com/problems/leaf-similar-trees/submissions/ https://leetcode.com/problems/leaf-similar-trees/discuss/ https://leetcode.com/problems/leaf-similar-trees/discuss/?currentPage=1&orderBy=hot&query= https://leetcode.com/problems/leaf-similar-trees/ https://www.geeksforgeeks.org/ https://www.geeksforgeeks.org/python-lists/ https://www.geeksforgeeks.org/python-string/ https://www.hackerearth.com/practice/data-structures/trees/binary-search-tree/tutorial/ https://www.pythoncentral.io/how-to-sort-a-list-tuple-or-object-with-sorted-in-python/ https://www.pythoncentral.io/how-to-slice-listsarrays-and-tuples-in-python/ https://www.programcreek.com/python/example/104993/leetcode.leafSimilar
Related People	Rohan Mallick
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