Coding interview questions

Amazon Hard Coding Interview Questions (DSA)

The 7 hard DSA problems Amazon has asked most in the last six months, most-asked first. Switch tabs to see the rest of the 50. Tick them off as you go.

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7hard problems
7full breakdowns
50Amazon problems in all

By difficulty: All (50) · Easy (13) · Medium (30) · Hard (7)

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Topics

42.Trapping Rain Water
Full breakdownArrayTwo PointersDynamic Programming
Hard+6▶ Mock
4.Median of Two Sorted Arrays
Full breakdownArrayBinary SearchDivide and Conquer
Hard+5▶ Mock
76.Minimum Window Substring
Full breakdownHash TableStringSliding Window
127.Word Ladder
Full breakdownHash TableStringBreadth-First Search
410.Split Array Largest Sum
Full breakdownArrayBinary SearchDynamic Programming
239.Sliding Window Maximum
Full breakdownArrayQueueSliding Window
Hard+2▶ Mock
124.Binary Tree Maximum Path Sum
Full breakdownDynamic ProgrammingTreeDepth-First Search

Frequently Asked Questions

What hard Amazon coding questions are most common?

InterviewSkool has 7 hard Amazon coding questions. Focus on the top 10 to 15 most common problems for the best ROI.

How many hard questions does Amazon have?

Amazon has 7 hard coding questions out of 50 total. Hard problems are less common but can appear in senior-level interviews.

Are these Amazon hard questions free?

Yes. All 7 hard Amazon coding questions are free to browse. No sign-up required. Filter by topic and click any problem to open it on LeetCode.

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