Sliding Window with Target Number

CodingRobloxLast reported May 2026Medium Frequency

Reported: 5× across candidate reports
First seen: July 2025
Last reported: May 2026
Reported outcome: mixed

Problem Overview

Given an array of numbers nums, a fixed window size k, and a target number, solve two related sub-problems: (1) Find all fixed-size sliding windows (contiguous subarrays of length k) that contain the target number; (2) Among all windows of size…

3 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
The rest of the problem statement — full requirements, constraints, and edge cases
Approach and trade-offs — what passing candidates did, and the mistakes that sink people

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Verified Source

Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.

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Interviewer Follow-ups

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