Same Tree

5        self.right = right
● 
7class Solution:
8    def isSameTree(self, p, q) -> bool:
9        # Base case: both nodes are null
10        if not p and not q:
......
15            return False
16 
17        # Values differ
18        if p.val != q.val:
19            return False
20 
......
22        left_same = self.isSameTree(p.left, q.left)
23        if not left_same:
24            return False