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Data structures · Image-Based Question
Difficulty: MediumFor the pictured tree rooted at 102, which key is at zero-based position 3 in its inorder traversal?
Binary search treesInorder traversal
![Root 102; left child 34, right child 140. Leaves left to right: [5, 84, 115, 151]. Each internal child has its two shown leaves.](/question-diagrams/formats/mixed-image-based-039.svg)
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Data structures · Image-Based Question
Difficulty: Medium