Binary Searchmedium45 minDevOps / SRE Engineer

Deploy Minimum Feasible Throughput

DevOps / SRE Engineer signal: binary search on answer + monotonic predicate in a rolling deploy planner context. This is a ProdMatch-owned devops sre drill, framed as a April 2026 CleverTap Release Platform simulation, not a copied platform question.

Company context

CleverTap · Release Platform

Freshness

April 2026

Product surface

rolling deploy planner

ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.

Question

For rolling deploy planner, choose the minimum processing rate so all pods finish before deadline. Each worker can process rate units per minute, rounded up per item.

Input

Work item sizes and deadline minutes.

Output

Minimum integer rate.

Constraints

1 <= items.length <= 200000
1 <= item size <= 1e9
Deadline is at least items.length.

Concepts

blast-radius graphs
alert dedupe
rolling windows
binary search on answer
monotonic predicate

sizes [3,6,7,11], deadline=8 -> 4

Approach

Try framing your own approach first. The 30 seconds you think before peeking is where learning happens.

Clean Solution

Reveal the approach first.

How well did you understand?

Your rating tunes when this problem shows up again.

Common Mistakes

Use low + (high - low) // 2 to avoid overflow.
The predicate must be monotonic or binary search is invalid.

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