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                企業??AI智能體構建引擎,智能編排和調試,一鍵部署,支持知識庫和私有化部署方案 廣告
                Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Note: A leaf is a node with no children. Example: Given binary tree [3,9,20,null,null,15,7], ![](https://box.kancloud.cn/779da46403721a5d5c4de883047e509e_259x132.png) return its depth = 3. ~~~ function depth(root) { if(root == null) return 0; return Math.max(depth(root.left), depth(root.right)) + 1 } var maxDepth = function(root) { return depth(root) }; ~~~
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