Databricks algorithms (two rounds) interview
Round 5 of 8 · 21 questions reported
- Length
- 60 min
- Format
- Live coding in CoderPad or similar
- They grade
- Data structures and algorithms with attention to optimization
Questions Databricks asks in this round 21
- Generalized tic-tac-toe with k in a rowSep 2026 · often
- Fastest single-mode commute on a city gridAug 2026 · often
- Durable event log writer shared by thousands of threadsAug 2026 · often
- Ordered IP firewall with CIDR rulesAug 2026 · often
- Key-value store that reports its recent request rateAug 2026 · often
- Customer revenue with referral credit and bottom-k querySep 2026 · sometimes
- Minimum-cost encryption of a directory treeSep 2026 · sometimes
- Hybrid run-length and bit-packing codecAug 2026 · sometimes
- Path between two nodes of an implicit Fibonacci treeJul 2026 · sometimes
- Lazy array with deferred map and indexOfApr 2026 · sometimes
- First position of any anagram of a pattern in a stringAug 2026 · rarely
- Remove one point from a cover of integer intervalsAug 2026 · rarely
- Linear regression with hand-written gradient descentApr 2026 · rarely
- Primary and secondary circuit breakers with failoverAug 2026 · once
- Build a target string from the fewest substrings of a sourceMay 2026 · once
- Rewrite a SQL query plan treeJan 2026 · once
- Largest all-ones square and rectangle in a binary matrixNov 2025 · once
- Maximum sum of non-adjacent houses, on a line, a circle and a treeNov 2025 · once
- Thread-safe single-machine chat server with channelsOct 2025 · once
- Drop a Tetris piece and clear full rows
- Find bottleneck dependencies in a parallel build
About the Databricks algorithms (two rounds) round
What does Databricks ask in the algorithms (two rounds) round?
The most asked: Generalized tic-tac-toe with k in a row, Fastest single-mode commute on a city grid and Durable event log writer shared by thousands of threads. 21 questions reported in all.
How long is the Databricks algorithms (two rounds) round?
About 60 minutes.
What is the Databricks algorithms (two rounds) round like?
Live coding in CoderPad or similar. They grade: Data structures and algorithms with attention to optimization.