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

Associate Software Engineer

DeltaX
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3 rounds | 6 Coding problems

Interview preparation journey

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Preparation
Duration: 6 months
Topics: Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic Programming
Tip
Tip

Tip 1 : DSA (Practice at least 250 Questions)
Tip 2 : OOPS
Tip 3 : Do atleast two projects

Application process
Where: Campus
Eligibility: 60% in Graduation
Resume Tip
Resume tip

Tip 1 : Have some projects on your resume.
Tip 2 : Do not put the wrong things on your resume.

Interview rounds

01
Round
Easy
Online Coding Interview
Duration60 minutes
Interview date12 Oct 2022
Coding problem3

1. DBMS Question

Which join is to be used between two tables A and B when the resultant table needs rows from A and B that matches the condition and rows from A that does not match the condition?
 

Problem approach

Tip 1 : Practice DBMS from internet

2. OS Questions

In Operating Systems, which of the following is/are CPU scheduling algorithms?
a) Priority
b) Round Robin
c) Shortest Job First
d) All of the mentioned

3. Reverse Linked List

Moderate
15m average time
85% success
0/80
Asked in companies
CognizantMicrosoftSAP Labs

Given a singly linked list of integers. Your task is to return the head of the reversed linked list.

For example:
The given linked list is 1 -> 2 ->...
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02
Round
Medium
Online Coding Test
Duration120 minutes
Interview date12 Oct 2022
Coding problem2

The coding test consisted of some questions all of which had to be correct to qualify for the next round.

1. PRETTY JSON

Easy
10m average time
90% success
0/40
Asked in companies
FacebookDeltaXD.E.Shaw

You are given a string 'STR' representing JSON object. Return an array of strings denoting JSON objects with proper indentation.

Rules for proper indentation:
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Problem approach

The key idea in solving this problem is to simply iterate through the given string and construct our array of strings. We need to take care of the following points:

Whenever we encounter some kind of opening brace, we add 4 spaces to all the below lines in the beginning
Whenever we encounter some kind of closing brace, we delete 4 spaces to all the below lines from the beginning
Wh...

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2. Reverse the first “K” elements of a queue

Easy
20m average time
80% success
0/40
Asked in companies
Goldman SachsCventDeltaX

You have been given a queue and an integer ‘K’. You need to reverse the order of the first ‘K’ elements of the queue.

Note :
The relative order of ...
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03
Round
Easy
Video Call
Duration90 minutes
Interview date12 Oct 2022
Coding problem1

In round 3,they asked me to explain the programs that i have solved in round 2 and some questions regarding OOPS and DBMS

1. Capture region

Moderate
10m average time
90% success
0/80
Asked in companies
HSBCGoogleMicrosoft

You are given a matrix having ‘N’ rows and ‘M’ columns. Each cell of the matrix is either ‘X’ or ‘O’. You need to flip all those regions of ‘O’ which are surrounded ...

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Problem approach

The algorithm is quite simple: Use BFS starting from 'O's on the boundary and mark them as 'B', then iterate over the whole board and mark 'O' as 'X' and 'B' as 'O'.

Try solving now

Here's your problem of the day

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

Minimum number of operands are required to use relational operators?

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