Uber OA Questions 2020: What Candidates Actually Saw
Last updated: May 2026
19+ Uber online assessment questions reported by candidates who took the OA in 2020. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
Uber OA Format in 2020
The Uber online assessment has followed a consistent format across multiple hiring cycles. Based on 2020 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 2020
Uber | OA
Given two integer arrays a and b, and an integer value d, your task is to find the comparator value between these arrays. \tThe comparator value is defined as the...
Uber | Online Assessment
Given a positive integer return result of product - sum. Integer (1>=n <=10^6) \t\tFor example: \t\t Input : 123456 \t\t product = 720 \t\t sum = 21 \t\t Output : 699 \t\t 2. Given...
UBER OA Question
Q. Divide the array into two parts, such that the difference between the sums of these two parts is minimized and the numbers of elements in these two parts differ...
Uber OA | Oct 2020
Question - 1: Rotate a matrix in clockwise direction without any extra space. You can\'t rotate the numbers on the diagonals. It\'s similar to this one: https://leetcode.com/problems/rotate-image/ **Question - 2: Given a list...
Uber | OA 2020 | Implement Increment Keys function for hashmap
I was asked this question recently on uber online assessment. 1) Implement Increment function for all values in hashmap 2) Implement Increment function for all keys in hashmap First task is easy....
UBER | OA 2020
Q Given a string str and an integer k, your task is to split str into a minimal possible number of substrings so that there are no more than k...
Uber Intern OA
You are given 3 strings, p, q, and r. You have to make r from p and q such that characters picked from p and q have their order preserved....
Uber OA Oct 2020
Question - 1 Given a list of numbers, return number of sub-arrays that satisfies the following condition: All elements in the sub-array appear at-least 2 times. Examples: 1. Given a list, [1,2,1,2,4], your code...
OA Uber 2020
Online Assessment Questions CodeSignal Time 70 minutes 4 Questions 1. Given an Array A[1,2,3,5,2] return an output array with a value 1 if sides A[i],A[i+1] and A[i+2] form a triangle else return 0....
Booking.com | Senior Software Engineer | Amsterdam | Nov 2020 [Offer]
Current situation Company: Uber Position: L4 Backend Location: Hyderabad, India Years of experience: 7+ Interview Experience Hackerrank screen: 3 questions (1 hard, 1 medium, 1 easy) Time: 90 mins I finished the test in 55 mins...
Uber | SE 1 | Hyderabad | Aug 2019 [Offer]
Status: 2020 New grad, Bachelors in CS Prior Experience: 1 Internship Date of Offer: Aug 2019 Joining Date: Aug 2020 Company: Uber Title: Software Engineer 1 Online Test: It consisted of 3 ds algo questions to...
Uber | SSE - II (Level 5B) | India | Mar 2020 [Reject]
Key | Value ---------|--------- Status | 7.5 years of experience. Graduated from top IIT in India (non-CS) Position | Senior architect at (600-800 people) robotics company Location | India Date | March 2020 ## Interview Result There...
Uber | L4 | Banglore | Oct-Nov 2020 [Reject]
Status: Software engineer at a mid-size startup in India Work experience - 3YOE How I got interview - I had been trying to get an interview at Uber for almost 1.5 months...
Uber | Phone | Pancake Sorting
I had one OA on AppSignal coding platform. Which i cleared. Then scheduled for zoom round. Zoom Round: Interviewers: 2 people joined, mainly one person was asking all questions. Question1 : Given below matrix: [[R...
Arista Networks | SDE | Onsite | Offer
I was interviewd by Arista Networks few days back. Process - Round 1 - Online Hackerrank challenge. Given a string "_!helloworld5678234kjlm*&!", return alphanumeric string with groups of k. Round 2 - Onsite Questions - 1....
Uber Online assessment Sept 2020.
The Online assessment test was held on codesignal. Q1. Given two arrays A[] and B[] containing positive integers and an integer \'d\'. we need to return the count of elements,A[i], in A[]...
Uber | OA | CodeSignal
Uber is trying to assess customer route patters and offer suggestions to other user based on this. Each from and to for a route can be represented as an undirected...
Uber | OA 2020 | composeKPalindrome
Given a string s, can you compose exactly K non-empty palindromes using all leters of s? Note that you can use only letters from s. Each letter from s that you...
Uber | CodeSignal OA | Construct an array by concatenating given smaller arrays
You are given an array A containing distinct integers and a bunch of smaller arrays called pieces[][]. Check whether we could concatenate these smaller arrays in pieces[][] to construct A....
Topic Breakdown (2020 OA)
Topics reported by candidates who took the Uber OA in 2020:
Difficulty Breakdown (2020 OA)
4
easy
2
hard
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 2020 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 2020?
Based on 2020 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