SDE Trainee at HashedIn

How it went

What they would tell you

How to prepare

Round by round

1. 1

   Online Assessment90 min

   This Round contain 3 questions 1 easy and 2 medium Each student got different set of question but difficulty were similar for all In my case I got one simple string question and 2 sliding window based question

   The sliding window question was some where similar to below question Q- Given an integer array nums and an integer k, return the number of good subarrays of nums. A good array is an array where the number of different integers in that array is exactly k. For example, [1,2,3,1,2] has 3 different integers: 1, 2, and 3. A subarray is a contiguous part of an array.

   • Subarrays with K Different Integers
2. 2

   Technical Round - 160 min

   This round was DSA round where the interviewer was too friendly in nature and after asking my introduction he started giving me question from leetcode which he had opened in laptop .

   I was asked to first tell the approach and then if he is satisfied with it , he ask me to write down the code on paper . He asked me 4 questions where other interviewers were asking 2 dsa questions only , may be because I was answering them too fast . My advice will be take your time and spend some time on explaining brute force as well .

   Q- Given an integer array nums, rotate the array to the right by k steps, where k is non-negative. Q- Given an array nums of size n, return the majority element. The majority element is the element that appears more than ⌊n / 2⌋ times. You may assume that the majority element always exists in the array.

   • Remove duplicate characters from string
   • 3 Sum
3. 3

   Technical Round - 253 min

   This round was system design round (mainly database) where I was asked to first explain my projects and then they picked one of my project which was similar to Airbnb and asked me to design its database .

   There were 2 interviewers in my case both were too friendly in nature and helped me a lot during interview whenever I seem to be stucked somewhere .

   During designing they keep adding things like what if room has different categories like 2bhk ,3 bhk , rooms with swimming pool etc. how you will search rooms at a specific location (which they helped me by giving hints )

   For other candidates they asked to design database for Twitter , Netflix and other social media apps

   • Design Airbnb database
4. 4

   HR Round30 min

   Firstly introduced and asked about family and home . then some basic questions from resume like react hooks and then some HR questions like what if some company offer you 20 LPA forced me too hard to say that money matters but you have to give a proper reason why Hasedin only . Questions: Why HashedIn What if some other company like amazon offers you 20 LPA

What came up