public static LeetCode700Node SearchBST(LeetCode700Node root, int val)
{
if (root == null || root.val == val)
{
return(root);
}
return(root.val > val?SearchBST(root.left, val) : SearchBST(root.right, val));
}
public LeetCode700Node(int val = 0, LeetCode700Node left = null, LeetCode700Node right = null)
{
this.val = val;
this.left = left;
this.right = right;
}