HashedIn interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
HashedIn
3 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 6 Months
Topics: DATA STRUCTURES, OOPS, DBMS, DYNAMIC PROGRAMMING, LOW-LEVEL DESIGN, GRAPHS
Tip 1 : Practice at least 20 questions on every topic.
Tip 2 : Make handwritten notes to make a good foundation
Tip 3 : Revise topics every week.
Application process
Where: Referral
Eligibility: Above 8 CGPA
Tip 1 : Add live projects with GitHub links
Tip 2 : Create solid and concise resume
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 Minutes
Interview date4 Jan 2022
Coding problem0
It was an online test consisting of 2 coding questions and one debugging question and 20 MCQ on fundamentals. 2 questions were of easy level and one was of medium level. I got shortlisted in this round. Questions were mainly based on arrays and strings.
02
Round
Medium
Video Call
Duration50 minutes
Interview date11 Jan 2022
Coding problem2
In this round, they mainly are interested to check our subject knowledge and problem-solving skills. The interview was 45 minutes duration.
The interviewer was very friendly and asked me to introduce myself to him and started the interview.
First, he asked me questions about Java, OOPS, OS, DBMS, and CN. Topics asked were Inheritence and its types, Normalisation in DBMS, 4 pillars of OOPS and its real-life examples, DML and DDL command in SQL, and some basics about computer networks. It went on for 15 minutes and I answered all the questions.
Then he shared the google docs link and gave me some coding questions and they were easy. He asked to open an online compiler and code the problem.
1. Add Strings
Easy
0/40
Asked in companies
You are given two non-negative integers, ‘NUM1’ and ‘NUM2’, in the form of strings. Return the sum of both strings.
Note :
You do not need to print anything, it has already been taken care of. Just implement the given function.
Example:
Let ‘NUM1’ be: “5”
Let ‘NUM2’ be: “21”
The sum of both numbers will be: “26”.
Problem approach
We scan each character of the input string and if a number is formed by consecutive characters of the string, we increment the result by that amount.
2. Detect The Cycle
Easy
0/40
Asked in companies
Kevin has given you a Singly Linked List that contains only integers. You have to determine if it forms a cycle or not.
A cycle occurs when a node's next pointer points back to a previous node in the list.
Problem approach
Traverse the list one by one and keep putting the node addresses in a Hash Table. At any point, if NULL is reached then return false, and if the next of the current nodes points to any of the previously stored nodes in Hash then return true.
03
Round
Easy
Video Call
Duration50 minutes
Interview date21 Jan 2022
Coding problem1
This round was a bit difficult and he asked me questions about all the technologies I worked on
1. Machine learning questions
Questions were asked on Machine learning, EDA on a dataset, Linear regression, and logistic regression algorithm implementations.
Problem approach
Tip 1 : Ask questions to better understand his requirement
Tip 2 : Think loudly and explain your entire thinking process
Tip 3 : Describe all the difficulties you faced while thinking of the best approach
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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