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JZ38
/**public class TreeNode { int val = 0; TreeNode left = null; TreeNode right = null; public TreeNode(int val) { this.val = val; }}*/import java.lang.Math;public class Solution { public int TreeDepth(TreeNode root) { if(root == null) return 0; int left = TreeDepth(root.left); int right = TreeDepth(root.right); return Math.max(left,right) + 1; }}
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