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Data structures · Image-Based Question
Difficulty: MediumFor the pictured tree rooted at 139, which key is at zero-based position 2 in its inorder traversal?
Binary search treesInorder traversal
![Root 139; left child 62, right child 158. Leaves left to right: [32, 105, 155, 175]. Each internal child has its two shown leaves.](/question-diagrams/formats/mixed-image-based-009.svg)
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Data structures · Image-Based Question
Difficulty: Medium