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Data structures · Image-Based Question
Difficulty: MediumFor the pictured tree rooted at 74, which key is at zero-based position 5 in its inorder traversal?
Binary search treesInorder traversal
![Root 74; left child 56, right child 163. Leaves left to right: [20, 59, 81, 173]. Each internal child has its two shown leaves.](/question-diagrams/formats/mixed-image-based-049.svg)
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Data structures · Image-Based Question
Difficulty: Medium