Uber Online Assessment (OA) Questions

These are the 14 online assessment (OA) questions Uber candidates reported receiving, sorted by how often each was reported. OA: Minimum Edge Reversals So All Edges Point Away from a Root leads at 13×. Every question shows when it was last reported; the catalog refreshes monthly.

Part of the full catalog of Uber interview questions, covering every round.

AceOffer is not affiliated with, endorsed by, or sponsored by Uber. Questions are reconstructed from interview experiences candidates shared, not from Uber materials.

Key facts

•14 distinct OA questions indexed
•60 candidate reports across those questions
•Most reported: OA: Minimum Edge Reversals So All Edges Point Away from a Root — 13× (last seen May 2026)
•1 free to read
•OA reports span November 2025 – August 2026
•9 of 14 question pages mention HackerRank
•Time limits mentioned: 90–120 minutes
•Refreshed monthly · last updated October 2026

Which Uber rounds ask OA questions?

The Uber rounds below are where these questions come up. Counts are distinct questions, not times asked.

Algorithm problems: minimum edge reversals on a tree, a jump game with prime steps ending in 3, palindrome-rearrangeable paths in a tree, pipeline throughput under a scaling budget, and others, often reported under different names.14 questions

Most reported: OA: Minimum Edge Reversals So All Edges Point Away from a Root — 13×

Which Uber OA questions get asked most?

Sorted by candidate-report frequency. Click any question for the full breakdown.

Question	Round	Reported	Last seen
OA: Minimum Edge Reversals So All Edges Point Away from a Root	OA	13×	May 2026
OA: Jump Game with Prime Steps Ending in 3Free	OA	11×	August 2026
OA: Disk Storage, Count Palindrome-Rearrangeable Paths to the Root	OA	6×	August 2026
OA: Maximize Pipeline Throughput Under a Scaling Budget	OA	5×	June 2026
OA: Minimum Triggers to Absorb All Balls (Chain Attraction)	OA	5×	June 2026
OA: Balanced Numbers in a Permutation	OA	5×	May 2026
OA: Final Prices with a Special Discount (Total and Full-Price Indices)	OA	4×	February 2026
OA: Purchase Optimization (Max Items from a Start Stall Within Budget)	OA	3×	February 2026
OA: Shortest Subarray with at Least K Distinct Integers	OA	2×	January 2026
OA: Minimum Knight Moves on an N x N Board	OA	2×	April 2026
OA: Total Cost to Turn Every Substring into a Palindrome	OA	1×	June 2026
OA: Minimum Operations to Reduce an Integer to 0 (Add or Subtract Powers of 2)	OA	1×	January 2026
OA: Assign Tasks to Two Workers, the First Does Exactly K, Maximise Reward	OA	1×	November 2025
OA: Minimum Delivery Cost Between Cities (Unique-Nearest Hop Costs 1)	OA	1×	July 2026

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FAQ

How many OA questions does Uber ask?▾

AceOffer has reconstructed 14 distinct Uber OA interview questions from 60 verified candidate reports, each with the follow-ups candidates reported and a last-reported date.

What is the most common Uber OA interview question?▾

OA: Minimum Edge Reversals So All Edges Point Away from a Root — reported 13 times, last seen May 2026.

When does Uber send its online assessment?▾

The Uber OA reports AceOffer has run from November 2025 to August 2026; the most recent is from August 2026. Timing within a hiring cycle varies by role, so check each question page for its own dates.

Which platform does Uber use for the OA?▾

9 of the 14 Uber OA question pages mention HackerRank, from candidate reports. Other reports do not name the platform.

How long is the Uber OA?▾

Reports mention time limits from 90 to 120 minutes, depending on the assessment. Each question page notes its own timing where candidates reported it.

How fresh is AceOffer's Uber OA question data?▾

The catalog is refreshed monthly from new candidate reports, and every question shows when it was last reported.

Get the full Uber catalog

Every question, every candidate-reported follow-up, and what passers actually do. Monthly refresh.

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