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Data structures · Image-Based Question
Difficulty: MediumFor the pictured tree rooted at 107, which key is at zero-based position 4 in its inorder traversal?
Binary search treesInorder traversal
![Root 107; left child 47, right child 151. Leaves left to right: [25, 67, 150, 169]. Each internal child has its two shown leaves.](/question-diagrams/formats/mixed-image-based-019.svg)
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Data structures · Image-Based Question
Difficulty: Medium