Print all the leaf nodes

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Construct a Binary Search tree and print all the leaf nodes of the tree. If there is only root node in the tree, consider it as leaf node. ### Input - The first line of input will contain a single integer $T$, denoting the number of test cases. - Each test case consists of multiple lines of input. - The first line contains the number of nodes $N$. - The second line of input contains $N$

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solution.cppC++17

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