# Binary Tree Height-Balanced

Given a binary tree, determine if it is height-balanced.

![image](https://github.com/VikashChauhan51/algorithms/assets/14816038/7789da8e-ea56-4571-af24-7edf65c5e5e0)

### Solution

```csharp
/**
 * Definition for a binary tree node.
 * public class TreeNode {
 *     public int val;
 *     public TreeNode left;
 *     public TreeNode right;
 *     public TreeNode(int val=0, TreeNode left=null, TreeNode right=null) {
 *         this.val = val;
 *         this.left = left;
 *         this.right = right;
 *     }
 * }
 */
public class Solution {
     public bool IsBalanced(TreeNode root)
    {
        return Balanced(root) >= 0;

    }
    public int Balanced(TreeNode root)
    {
        if (root == null)
            return 0;
        var lh = Balanced(root.left);
        if (lh == -1)
            return -1;

        var rh = Balanced(root.right);
        if (rh == -1)
            return -1;
        if ((lh > rh + 1) || (rh > lh + 1))
            return -1;
        else
            return Math.Max(lh, rh)+1;


    }
}
```


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