Microsoft OA High-Frequency Questions 2026

Recently completed the Microsoft 2026 SDE Online Assessment (New Grad + Intern). One-line summary: Stable structure, but increasing difficulty and time pressure. Platforms are mainly HackerRank or Codility, with a typical format: 2 questions 75–90 minutes (Codility sometimes 110 minutes) Questions are mostly Medium, occasionally Medium-Hard, with stronger emphasis on: Engineering thinking Edge case handling Code robustness 1. Stacks / Blocks Conversion Description: Given an array where each numb