Python recursive solution.

  • 0

    I love python! the solution itself reads like a psuedo code.

    def lowestCommonAncestor(self, root, p, q):
            if not root: return None
            if root == p or root == q: return root
            left = self.lowestCommonAncestor(root.left, p, q)
            right = self.lowestCommonAncestor(root.right, p, q)
            if left and right:
                return root
                return left or right

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