Uber interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Uber
3 rounds | 5 Coding
problems
Selected Interview preparation journey
Journey
In the lockdown period, I started my journey to where I am today. Firstly I planned that I will start learning DSA from the scratch . So i started and along with DSA, I also learned development because that is what I wanted to be.
Application story
I asked one of my friend to refer me in his company. He referred me and after 15 days, I got mail regarding interview call.
Why selected/rejected for the role?
I think I was on point with my coding solutions to the questions asked in the interviews. I provided the optimal solutions and I was giving correct explanations to some theory questions asked. Finally I got selected
Preparation
Duration: 5 months
Topics: Data Structures and algorithms, OOPS, DBMS, Operating System, Puzzles, Aptitude, Maths(Probability, Permutations, Number Theory)
Tip 1 : Be thorough with data structures and algorithms. Avoid just switching between different coding platforms according to people's suggestion instead pick one and stick to it(Leetcode worked for me!).
Tip 2 : Do not miss out on core subjects (for GS ,OOPs and Operating systems especially).
Tip 3 : Keep giving mock interviews (take at least 2 -3 prior to real one) ,it helps a lot to prevent last-minute interview anxieties and makes you feel prepared and confident.
Application process
Where: Referral
Eligibility: 7.5 CGPA
Tip 1 : Choose the right format, it should reflect professionalism.Goldman Sachs blog suggests to arrange your resume with your educational information at the top,followed by your grade-point average,professional experience, projects and any special interests and activities or achievements.
Tip 2 : If you do not have any prior experience, solidify your projects section(3-4 is a good number).Articulate your project description in a precise and crisp format.
Tip 3 : Come up with three reasons why you should be picked for the job in accordance with job's description —these will be some of the top traits you’ll want to emphasize in your resume.
Tip 4 : Go through company's career blogs ,might give you relevant insights on what it expects then align your presentation in accordance with in.(Link to GS blog on resume tips:https://www.goldmansachs.com/careers/blog/posts/resume-tips-from-goldman-sachs.html)
Interview rounds
01
Round
Hard
Online Coding Test
Duration135 minutes
Interview date13 May 2021
Coding problem2
1. Counting Pairs
Moderate
35m average time
65% success
0/80
Asked in companies
You are given a positive integer N and an equation 1/X + 1/Y = 1/N
You need to determine the count of all possible positive integral solutions (X, Y) for the above equation.
Note:
1. X and Y should be greater than 0.
2. (X, Y) and (Y, X) are considered different solutions if X is not equal to Y, i.e. (X, Y) and (Y, X) will not be distinct if X=Y.
Problem approach
It was tricky bit manipulation problem. Think using left shift algo
2. Level Order Traversal
Easy
15m average time
85% success
0/40
Asked in companies
You have been given a Binary Tree of integers. You are supposed to return the level order traversal of the given tree.
For example:
For the given binary tree
The level order traversal will be {1,2,3,4,5,6,7}.
Problem approach
Use recursion to solve this problem
02
Round
Medium
Video Call
Duration50 minutes
Interview date14 May 2021
Coding problem2
First Round
So the first round started with a tell me about yourself question, all the interviewers were pretty comforting and cooperative.
She went ahead and asked more about my teaching assistant's experience, challenges faced and some behavioural question around it.
1. Frequency In A Sorted Array
Easy
15m average time
85% success
0/40
Asked in companies
You are given a sorted array 'ARR' and a number 'X'. Your task is to count the number of occurrences of 'X' in 'ARR'.
Note :
1. If 'X' is not found in the array, return 0.
2. The given array is sorted in non-decreasing order.
2. Rod cutting problem
Moderate
40m average time
75% success
0/80
Asked in companies
Given a rod of length ‘N’ units. The rod can be cut into different sizes and each size has a cost associated with it. Determine the maximum cost obtained by cutting the rod and selling its pieces.
Note:
1. The sizes will range from 1 to ‘N’ and will be integers.
2. The sum of the pieces cut should be equal to ‘N’.
3. Consider 1-based indexing.
Problem approach
Tip 1 : Go through puzzle section of gfg
Tip 2 : Think twice thrice then jump to answer
Tip 3 : Be patient
03
Round
Easy
HR Round
Duration30 minutes
Interview date14 May 2021
Coding problem1
HR round mainly consists of question related to our personal life. They see our thinking skill, how we are tackling any problem in our life
1. Basic HR Questions
Why Uber?
Have you checked today's stock prices of GS?
How would you tackle arguments or discrimination faced on the basis of gender/color/race/culture?
Problem approach
Tip 1 : Be prepare with famous standard question
Tip 2 : Dry run your code first before showing it to HR
Tip 3 : Don't hesitate to ask your doubt
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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