Microsoft 面试题、OA 真题与面经

1. #1Longest Path with Alternating Letters in Tree≈估计困难
2. #2Smallest Missing Positive after Merging A and B≈估计中等
3. #3Erase Pairs of Identical Letters≈估计中等
4. #4Roll Operation on String≈估计中等
5. #5Intern Tasks — Max Combined Reward Points≈估计中等
6. #6Three Consecutive Replace — Max Operations≈估计中等
7. #7Sum of Final Prices (Next Lower-or-Equal)≈估计中等
8. #8Find Suitable Locations≈估计中等

Microsoft 全部 72 道 OA 真题

1. 01LC 15 3Sum×1 · 2026-091 次面经报告，最近 2026-09中等
   来源 1 篇面经

   • Find Unique Zero-Sum Triplets2026-09
2. 02LC 424 Longest Repeating Character Replacement×1 · 2026-091 次面经报告，最近 2026-09中等
   来源 1 篇面经

   • Longest Single-Letter Substring After at Most k Letter Replacements2026-09
3. 03LC 1338 Reduce Array Size to The Half×1 · 2026-081 次面经报告，最近 2026-08中等
   来源 1 篇面经

   • Fewest Distinct Values to Delete So at Least Half the Array Is Removed2026-08
4. 04LC 740 Delete and Earn×1 · 2026-081 次面经报告，最近 2026-08中等
   来源 1 篇面经

   • Maximize Points by Deleting Values and Their Neighbors2026-08
5. 05LC 75 Sort Colors×1 · 2026-041 次面经报告，最近 2026-04中等
   来源 1 篇面经

   • Sort Three Categories In Place2026-04
6. 06LC 146 LRU Cache×1 · 2026-041 次面经报告，最近 2026-04中等
   来源 1 篇面经

   • Design cache with least-recently-used eviction2025-10
7. 07LC 234 Palindrome Linked List×1 · 2026-041 次面经报告，最近 2026-04简单
   来源 1 篇面经

   • Check a Linked List Palindrome Without Mutating It2026-04
8. 08LC 116 Populating Next Right Pointers in Each Node×1 · 2026-021 次面经报告，最近 2026-02中等
   来源 1 篇面经

   • Populate next pointers in a perfect binary tree2026-02
9. 09LC 286 Walls and Gates 🔒×1 · 2026-021 次面经报告，最近 2026-02中等
   来源 1 篇面经

   • Fill rooms with nearest-gate distance2026-02
10. 10LC 235 Lowest Common Ancestor of a Binary Search Tree×1 · 2025-111 次面经报告，最近 2025-11中等
    来源 1 篇面经

    • Find lowest common ancestor in tree2025-11

• Microsoft Software Engineer Interview Experience — Product Pages, Trackable Links, and Anonymous Users

  Onsite轮次：Onsite面试于 2026-08

  Software Engineer

• Microsoft Software Engineer Interview Experience — A 90-Minute OA and Only Time for Brute Force

  OA轮次：OA面试于 2026-08

  Software Engineer

• Microsoft Software Engineer Interview Experience — HackerRank OA with Two Coding Problems, Then VO

  OA轮次：OA面试于 2026-08

  Software Engineer

• Microsoft Principal Applied Scientist Interview Experience — Virtual Onsite, Then the Req Was Cancelled

  无回音技术面 → Onsite轮次：技术面、Onsite面试于 2026-08

  Applied Scientist

• Microsoft Software Engineer Interview Experience — Four Rounds in One Day, Not Selected

  未通过HR 面 → Onsite轮次：HR 面、Onsite面试于 2026-09

  Software Engineer

• Microsoft Intern Machine Learning Engineer Interview Experience — Research Intern Video Screen That Was Pure LeetCode

  技术面轮次：技术面面试于 2026-02

  Machine Learning Engineer

1. 编程Sizes of 4-Connected Foreground Regions in a Binary Image, in Scan Order简单
2. 编程Find Unique Zero-Sum Triplets中等
3. 编程Find the First Value Repeated During a Left-to-Right Scan中等
4. 编程Minimize the Largest Value When Picking at Least k Non-Adjacent Houses中等
5. 编程Longest Single-Letter Substring After at Most k Letter Replacements中等
6. 编程Maximize Equal Array Length After Contiguous Sum Merges中等

这是按雇主税号统计的申请数，不是人数，也不代表某个岗位一定提供担保。新雇佣含首次申请、新的兼职雇佣和换雇主，续签含延期、同雇主变更和修改。 数据来源：USCIS H-1B Employer Data Hub (FY2021–FY2025)，更新于 2026-10-17。