Coinbase interview experience Real time questions & tips from candidates to crack your interview

# SDE - 1

Coinbase
3 rounds | 5 Coding problems

## Interview preparation journey

Journey
When I joined college, I was unaware of this Data Structure and Algorithm, which made my journey to getting an internship way more complicated. From that point, I started doing questions on leetcode and code studio.
Application story
This company visited for the placement to my college i get to know about this company from my college placement cell.
Why selected/rejected for the role?
I was rejected because i was not able to provide a good approach to the DSA question which are being asked
Preparation
Duration: 4 Months
Topics: Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic Programming
Tip

Tip 1 : Practice from Leetcode, solve Leetcode medium level problems.
Tip 2 : Brush up computer fundamentals from subjects like OS, DBMS and CN.
Tip 3 : Have a good project or good internship experience and have in-depth knowledge regarding what you have done.

Application process
Where: Campus
Eligibility: Above 7 CGPA
Resume tip

Tip 1 : Do not even mention topics you have no idea about
Tip 2 : you should have some projects on resume and you should be able to explain clearly why you have chosen the particular project, what does it do, its functionality, outcomes and everything about each of the projects.
Tip 3 : Tailor your resume according to the needs/the role you are applying for

## Interview rounds

01
Round
Easy
Video Call
Duration45 Minutes
Interview date15 Dec 2022
Coding problem2

### 1. Count Inversions

Moderate
40m average time
55% success
0/80

#### For a given integer array/list 'ARR' of size 'N' containing all distinct values, find the total number of 'Inversions' that may exist.

View more
Problem approach

Firstly I gave him a brute force approach, then he asked me to give an optimal solution so I gave him an enhanced merge-sort solution.

### 2. Convert a binary tree to its sum tree

Easy
15m average time
85% success
0/40

#### Given a binary tree of integers, you are supposed to modify the given binary tree to a sum tree where each node value is replaced by the sum of ...

View more
02
Round
Easy
Video Call
Duration60 Minutes
Interview date15 Dec 2022
Coding problem2

Easy
10m average time
90% success
0/40

View more

### 2. Zigzag Binary Tree Traversal

Easy
10m average time
90% success
0/40

#### Return the level-order traversal of the Binary Tree.

##### Example:
Input: Conside...
View more
03
Round
Easy
HR Round
Duration60 Minutes
Interview date15 Dec 2022
Coding problem1

### 1. Basic HR Questions

What motivates you to do good job?

Give me an example of your creativity.
How long would you expect to work for us if hired?

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

What is the result of 4 % 2?

Start a Discussion
Similar interview experiences
SDE - 1
3 rounds | 5 problems
Interviewed by Coinbase
1855 views
SDE - 1
2 rounds | 4 problems
Interviewed by Coinbase
3141 views
SDE - 1
2 rounds | 4 problems
Interviewed by Coinbase
769 views
SDE - 1
3 rounds | 6 problems
Interviewed by Coinbase
173 views
Companies with similar interview experiences
SDE - 1
5 rounds | 12 problems
Interviewed by Amazon
103833 views