LFU Cache

CodingMicrosoftLast reported April 2026Low Frequency

Problem Overview

Microsoft coding question, reconstructed from 2 candidate reports (April 2026). The write-up includes a Python solution that passes 6 test cases.

The full problem statement — full requirements, constraints, and edge cases
Approach and trade-offs — what passing candidates did, and the mistakes that sink people

Unlock the full Microsoft catalog

Full problem statements, candidate-reported follow-ups, and walkthroughs — for every Microsoft question.

Already a member? Sign in

Verified Source

Every question is reconstructed from multiple independent candidate reports. Follow-ups candidates reported, not invented ones.

Codex Fact-Checked

Technical claims, formulas, and scale numbers are reviewed against primary sources.

Interviewer Follow-ups

The follow-ups candidates reported, with the trigger that prompts each one — plus the mistakes that sink people.