Abstract Data Type (ADT)
Abstract Data Type (ADT) is a DSA topic. In plain words you use it for folder on disk in a file explorer. Don’t start with a slogan — start with that picture.
Smallest example: left < root < right. Type it, run it, and say what you see. If you can do that from memory, you know Abstract Data Type (ADT).
From the example next to this theory — Abstract Data Type (ADT): dry-run [4, 1, 3].
Trap — unbalanced BST becoming a list. Fix that before you talk about advanced DSA.
Viva — what is Abstract Data Type (ADT)? Then show left < root < right. Then name the trap.
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1 6Exam tip
What is Abstract Data Type (ADT)? Show this: left < root < right. Trap: unbalanced BST becoming a list.