Technical Screen

A Sliding Window OA and a Backtracking Scheduling Problem

Walmart LabsSoftware Engineer · Technical Screen · Apr 2026

First round OA: LC coding + AI frontend/backend Sliding window / hash map problem, data scale up to 10^5, so it had to be an O(N) solution. Description: A class has many students, and each student has exactly one specific talent. There are talentsCount total types of talent, numbered from 1 to talentsCount. Now we need to form teams for a competition, and each team must include every type of tale…

Shared by a candidate · reported Apr 2026. Interview formats change; use it as a guide, not a script.