Uber OA Questions 2021: What Candidates Actually Saw
Last updated: May 2026
28+ Uber online assessment questions reported by candidates who took the OA in 2021. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
Uber OA Format in 2021
The Uber online assessment has followed a consistent format across multiple hiring cycles. Based on 2021 reports in the database, candidates typically see 2 to 3 algorithmic coding problems delivered through a proctored online platform (most commonly HackerRank). Some roles include additional behavioral or work-simulation components after the coding section.
Time limits reported by candidates range from 70 to 110 minutes for the full assessment. The coding problems are auto-graded, so edge case handling and runtime efficiency both matter. Partial credit is available on some platforms if your solution passes a subset of test cases.
Real Uber OA Questions from 2021
Uber OA
Q1. Given two strings s and t. Count the number of occurence of t in s as follows. Length of t is 3, increment count when t == s[i]s[i+2]s[i+4] e.g s...
UBER OA Question
I was reading an interview experience of Uber and came across this question which was asked in OA. Any hints/guesses how to solve this... Given an array A of N elements,...
Uber | Online Assessment
Convert an array into strictly increasing or decreasing where each number differ by 1. You can only add the numbers to array element but not reduce it. Find the minimum...
Uber Oa
1) given an array Find number of elements equal to mean of neighbor elements. 2 4 6 6 3 Ans: 3 2,4,3 satisfy that condition 2=4+0/2, 4=2+6/2 2) delete min of peak elements one by one...
Uber codesignal
We want to give incentives to driver. So we need to devise a mechanism to calculate these incentives. On the end of every trip, an Uber driver gets rating for the...
Uber | OA - CodeSignal | Sum of prime factors
Given a number ( greater than 1 and less than 1e12 ) return the sum of it\'s prime factors Example inputs : 9 = 3 3. So, answer is (3+3) =...
Uber | OA - CodeSignal | number of ways with n cities and x paths
Given \'n\' cities and each city is connected to the other by a direct road. You are currently at your hometown. You have to wander around the city and come...
Uber | OA - CodeSignal | count of strictly increasing sequences
Given two list of integers \'a\' and \'b\' of same length \'n\'. Find the count of strictly increasing sequences of integers l[0] < l[1] < .... l[n-1] so that min(a[i],...
Uber Codesignal Phonescreen - Top Sort Question!
Question: Given an input of a list of lists, each list contains a list of node_ids. The order of the list [A,B] represents a one way connection from node A to node...
UBER OA QUESTION HELP NEEDED
A building is to be created with a given number of floors.There can be three different types of floors in the building. The owner of the building has two wishes...
Uber| OA|SDE2
Iterate through array \'a\' and return another array b of length a.length -2, where b[i] = 1 if a[i-1]<a[i]>a[i+1] or a[i-1]>a[i]<a[i+1]. 2. given an array element. Find if 1 or...
Uber OA CampusTest
1.You have been given the responsibility to prepare the next campus test. You are given two lists of difficulties and points both of size n whose ith element represents difficulty...
Uber | Software engineer - University | Bangalore | 12-06-2021
Fresher Online Assessment for SWE - University role. The online assessment had 3 questions, was for 70 min and was conducted on CodeSignal. Needed to solve all 3 questions to...
Uber | SSE(iOS) | Bangalore | Nov 2021(Rejected)
Round 0: Online Assessment(Code Signal) | 1hr | 2LC medium questions https://leetcode.com/problems/minimum-absolute-sum-difference/ Couldn\'t find the other problem. Problem was on array Round 1: DS&Algo + iOS | 1hr | 1LC medium + iOS memory leak...
Uber | SDE2 | L4 | Bangalore | Accepted
Experience: 2 years 4 months Position: SDE2-L4 Location: Bangalore, India Offer Date: Dec, 2021 I had contacted the uber HR who had contacted my friend over LinkedIn, she was happy to consider me as...
Maximum number of stones - Uber Online Assessment India Codesignal
Problem Statement : Edward and Alphonse are alchemists. They want to perform human transmutation to revive their mother and need philosopher stones for it. Father Inc has a factory which produces...
Uber | SDE | 6M intern | India [offer]
Uber Internship Interview Experience | On-Campus Difficulty Level : Hard Process: Online Test followed by 3 Rounds of interviews Online Test : Platform: Code-signal 3 coding problems in 60 minutes- All the problems were...
VMware | MTS-2
My detailed experience with VMware for MTS-2 Round 1 [Hackerrank Test - 90 min] Q1: Custom exception raise in python Q2: Consecutive Sum (https://leetcode.com/problems/consecutive-numbers-sum/) Q2: Diameter of Binary Tree (https://leetcode.com/problems/diameter-of-binary-tree/) Round 2 [Technical Interview -...
UBER || CodeSignal
Uber is recently planning to launch electric vehicles. Each electric vehicle contains swappable battery which needs to be replaced at some moment of time. At a particular moment there are...
Uber | OA | University 2021 | code signal
Q-1 Edward and Alphonse are alchemists. They want to perform human transmutation to revive their mother and need philosopher stones for it. Father Inc has a factory which produces philosopher stones....
Topic Breakdown (2021 OA)
Topics reported by candidates who took the Uber OA in 2021:
Difficulty Breakdown (2021 OA)
4
hard
3
easy
Difficulty labels are reported by candidates or inferred from LeetCode ratings.
How to Prepare for the Uber OA
The Uber OA is a timed, auto-graded coding test. Preparation is different from interview prep: you need to optimize for both correctness and speed, since partial credit requires passing test cases, not just showing reasoning.
- Practice timed sessions. Set a timer for 35 to 45 minutes per problem and simulate the real constraint.
- Focus on the topic clusters that appear most in Uber OA reports: dynamic programming, graphs, arrays, and strings make up the majority of reported problems.
- Read the problem constraints carefully before writing code. The constraints often reveal the expected time complexity and algorithm type.
- Use the LeakCode database to review 2021 OA questions from actual candidates. Pattern recognition across multiple sightings is a stronger prep signal than any single mock problem.
- If the OA includes a work simulation section, practice under realistic conditions. This section tests judgment and values alignment, not coding ability.
FAQ
What does the Uber OA look like in 2021?
Based on 2021 candidate reports, the Uber OA typically includes 2 to 3 coding problems and runs 70 to 110 minutes. Topics lean toward dynamic programming, graphs, arrays, and strings. Some roles include a work simulation section after the coding component.
How long is the Uber OA?
Most candidates report 70 to 90 minutes for the coding component. Roles with additional work simulation sections extend the total time to 110 to 150 minutes. Check your invitation email for the exact time allocation for your specific role.
What platform does Uber use for the OA?
Uber uses HackerRank or its own proprietary platform depending on the role and hiring cycle. Your invitation will specify the platform. Both platforms support multiple languages including Python, Java, C++, and JavaScript.
Are these real Uber OA questions?
Yes. All questions in the LeakCode database come from candidate reports on 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. They are not AI-generated. Each question links to its source where available.
Other Uber OA Years
Related: Uber OA Hub · Uber All Questions · All OA Questions · Data Sources