DSA · Theory

Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)

Theory

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Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)

Zara only reaches for Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) when folder on disk has to stay correct in a file explorer.

Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) on the board: left < root < right. Then say what folder on disk looks like after.

Skip Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) and unbalanced BST becoming a list shows up in a file explorer.

Zara ships Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) in a file explorer. That is the use case worth saying.

If folder on disk breaks under Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries), check unbalanced BST becoming a list first.

After Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries), Zara should still remember unbalanced BST becoming a list.

Viva for Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries): what it is → left < root < right → the mistake (unbalanced BST becoming a list).

Exam tip

Say Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) in one breath, then left < root < right, then unbalanced BST becoming a list.

Example

# Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries): dry-run [4, 1, 3]. Say the list after one step.

Short notes

DefNumber of elements greater than K in the range L to R using Fenwick Tree (Offline queries) — Zara uses it for folder on disk in a file explorer.
RuleNumber of elements greater than K in the range L to R using Fenwick Tree (Offline queries) → left < root < right.
RememberNumber of elements greater than K in the range L to R using Fenwick Tree (Offline queries) + time vs memory (a file explorer).
UseNumber of elements greater than K in the range L to R using Fenwick Tree (Offline queries) in a file explorer (folder on disk).
TrapNumber of elements greater than K in the range L to R using Fenwick Tree (Offline queries) — unbalanced BST becoming a list.
ExNumber of elements greater than K in the range L to R using Fenwick Tree (Offline queries) → folder on disk.

# Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries) data = [4, 1, 3] print("start", data) if data[0] > data[1]: data[0], data[1] = data[1], data[0] print("after one step", data)

Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)

Example

Short notes

Questions

Number of elements greater than K in the range L to R using Fenwick Tree (Offline queries)

Example

Short notes

Questions