Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)
Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) 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 Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries).
From the example next to this theory: Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries): dry-run [4, 1, 3].
Trap — unbalanced BST becoming a list. Fix that before you talk about advanced DSA.
Viva: what is Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)? Then show left < root < right. Then name the trap.
What is Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)? Show this: left < root < right. Trap: unbalanced BST becoming a list.