Amazon 面试题、OA 真题与面经

1. #1System Vulnerabilities≈估计困难
2. #2Group Students≈估计中等
3. #3Self-Sufficient Substring≈估计困难
4. #4Cart Prefix Zero≈估计中等
5. #5Consistency Score≈估计中等
6. #6Get Score Difference≈估计简单
7. #7Get Winner Count≈估计中等
8. #8Data Dependence Sum≈估计中等

Amazon 全部 400 道 OA 真题

1. 01LC 295 Find Median from Data Stream×2 · 2025-082 次面经报告，最近 2025-08困难
   来源 2 篇面经

   • Design a streaming median structure2025-08
   • Design Efficient Data Structure for Median Retrieval2025-08
2. 02LC 399 Evaluate Division×1 · 2026-091 次面经报告，最近 2026-09中等
   来源 1 篇面经

   • Answer a large batch of variable-ratio queries from division equations2026-09
3. 03LC 235 Lowest Common Ancestor of a Binary Search Tree×1 · 2026-091 次面经报告，最近 2026-09中等
   来源 1 篇面经

   • Find the deepest shared ancestor of two keys in a binary search tree2026-09
4. 04LC 474 Ones and Zeroes×1 · 2026-091 次面经报告，最近 2026-09中等
   来源 1 篇面经

   • Maximize the number of binary strings chosen under zero and one budgets2026-09
5. 05LC 125 Valid Palindrome×1 · 2026-081 次面经报告，最近 2026-08简单
   来源 1 篇面经

   • Check a Palindrome While Ignoring Case and Punctuation2026-08
6. 06LC 98 Validate Binary Search Tree×1 · 2026-041 次面经报告，最近 2026-04中等
   来源 1 篇面经

   • Determine Whether a Binary Tree Is a Valid BST2026-04
7. 07LC 200 Number of Islands×1 · 2026-031 次面经报告，最近 2026-03中等
   来源 1 篇面经

   • Count regions with DFS2025-09
8. 08LC 49 Group Anagrams×1 · 2026-031 次面经报告，最近 2026-03中等
   来源 1 篇面经

   • Group Anagrams Without Sorted Character Signatures2026-03
9. 09LC 146 LRU Cache×1 · 2026-031 次面经报告，最近 2026-03中等
   来源 1 篇面经

   • Implement LRU cache with O(1) ops2025-08
10. 10LC 987 Vertical Order Traversal of a Binary Tree×1 · 2026-011 次面经报告，最近 2026-01困难
    来源 1 篇面经

    • Design a Scalable, Fault-Tolerant Distributed Order System2025-08

• Amazon New Grad Software Engineer Interview Experience — Four Rounds Ending with a Bar Raiser

  技术面 → 其他轮次：技术面、其他面试于 2026-03

  Software Engineer

• Amazon Intern Software Engineer Interview Experience — Robotics Charging Logic and Package Dimensions

  技术面轮次：技术面面试于 2026-01

  Software Engineer

• Amazon Software Engineer Interview Experience — One Virtual Onsite Round with BQ Drill-downs and a Checkout Price Engine OOD

  Onsite轮次：Onsite面试于 2026-09

  Software Engineer

• Amazon Senior Software Engineer Interview Experience — L6 Phone Screen With an Impatient Interviewer, LCA Follow-up Stuck

  技术面轮次：技术面面试于 2026-10

  Software Engineer

• Amazon Software Engineer Interview Experience — Online Assessment with a Merge-Strings Conflict Problem and an AI Spring Boot Bug-Fix Task

  OA轮次：OA面试于 2026-09

  Software Engineer

• Amazon Software Engineer Interview Experience — Online Assessment with a Django Debug Round

  OA轮次：OA面试于 2026-09

  Software Engineer

1. 编程Stack Whose Pop Removes the Most Frequent Value, Ties Broken by Recency中等
2. 编程Lowest Common Manager of a Group of Employees in an Org Chart中等
3. 面试Answer a large batch of variable-ratio queries from division equations中等
4. 编程Simulate one disc-flipping board game move across all eight directions中等
5. 编程Grid Reachability for a Robot That Cannot Reverse and Has Restricted Turns中等
6. 编程Maximize the Bitwise AND of K Elements After Spending an Increment Budget困难

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。