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Same Tree - Leetcode 100 - Python

 100. Same Tree

Given the roots of two binary trees p and q, write a function to check if they are the same or not.

Two binary trees are considered the same if they are structurally identical, and the nodes have the same value.



class Solution:

    def isSameTree(self, p: Optional[TreeNode], q: Optional[TreeNode]) -> bool:

        if not p and not q :

            return True

        

        if not p or not q or p.val != q.val :

            return False

        

        return (self.isSameTree(p.left, q.left) and 

        self.isSameTree(p.right, q.right))

        


Explaination :



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