Coding interview questions

Oracle Hard Coding Interview Questions (DSA)

The 5 hard DSA problems Oracle 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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5hard problems
5full breakdowns
50Oracle problems in all

By difficulty: All (50) · Easy (8) · Medium (37) · Hard (5)

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Companies

Google50Meta50Amazon50Apple50Microsoft50Uber50Oracle50Salesforce50Walmart50Bloomberg50Atlassian48Goldman Sachs39TikTok34Databricks26Rippling25Netflix24LinkedIn23Visa23Anduril21Snowflake20Adobe17NVIDIA16OpenAI14DE Shaw14JPMorgan14Pinterest14Capital One12Roblox11Airbnb9Flipkart9Anthropic4

Topics

23.Merge k Sorted Lists
Full breakdownLinked ListDivide and ConquerHeap (Priority Queue)
Hard+4▶ Mock
76.Minimum Window Substring
Full breakdownHash TableStringSliding Window
Hard▶ Mock
41.First Missing Positive
Full breakdownArrayHash Table
Hard▶ Mock
42.Trapping Rain Water
Full breakdownArrayTwo PointersDynamic Programming
Hard+6▶ Mock
140.Word Break II
Full breakdownArrayHash TableString
Hard▶ Mock

Frequently Asked Questions

What hard Oracle coding questions are most common?

InterviewSkool has 5 hard Oracle coding questions. Focus on the top 10 to 15 most common problems for the best ROI.

How many hard questions does Oracle have?

Oracle has 5 hard coding questions out of 50 total. Hard problems are less common but can appear in senior-level interviews.

Are these Oracle hard questions free?

Yes. All 5 hard Oracle 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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