【剑指offer】面试题39:深度二叉树
def TreeDepth1(root): if None == root: return 0 if None == root.left and None == root.right: return 1 leftDepth = 0; rightDepth = 0 if root.left: leftDepth = TreeDepth(root.left) if root.right: rightDepth = TreeDepth(root.right) return max(leftDepth, rightDepth) + 1
简洁点的
ef TreeDepth(root): if None == root: return 0 return max(TreeDepth(root.left), TreeDepth(root.right)) + 1
代价将是不必要的递归
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