'Coding has over 700 languages', '67% of programming jobs aren’t in the technology industry', 'Coding is behind almost everything that is powered by electricity'
Procol interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
Procol
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3 rounds | 9 Coding problems
Interview preparation journey
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Preparation
Duration: 6 Months
Topics: Data Structures, OOPS, Operating system, Databases, Javascript, NodeJs, React
Tip
Tip

Tip 1 : Do at least two good projects relevant to the company and role applying for.
Tip 2 : Always read the job description carefully and do some research about the company
Tip 3 : Have a good knowledge of Computer Science fundamentals.

Application process
Where: Campus
Eligibility: 6 CGPA
Resume Tip
Resume tip

Tip 1 : Include some relevant skills required in the job description.
Tip 2 : Make a single-page resume.

Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 Minutes
Interview date9 Sep 2020
Coding problem3

The test consists of 2 sections: MCQ’s and 3 coding questions. It was a 90 minutes test, which could be started anytime between the time window of 2 hrs (In my case window was open from 4 PM to 6 PM). The test was proctored and any suspicious activity would have cancelled our test.

1. Game of Dominoes
Moderate
30m average time
70% success
0/80
Asked in companies
OlaInfosysProcol

Rafiq loves to play with dominoes. On his birthday his father gifted him ‘N’ piles of dominoes, where each pile contains a positive number of dominoes stacked above.

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2. STRING KA KHEL
Moderate
15m average time
85% success
0/80
Asked in companies
AmazonPublicis SapientWalmart
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3. Minimum Operations To Make Array Equal
Easy
10m average time
90% success
0/40
Asked in companies
WalmartDunzoAmazon

You are given an array ‘ARR’ of length ‘N’ which is fill...

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02
Round
Medium
Video Call
Duration60 Minutes
Interview date10 Jan 2021
Coding problem4

It was a 60 minutes video call round held on Google Meet.The Interviewer was very helpful.

1. Find power of a number
Easy
15m average time
80% success
0/40
Asked in companies
QuikrWalmartSAP Labs

Ninja is sitting in an examination hall. He is encountered with a problem statement, "Find ‘X’ to the power ‘N’ (i.e. ‘X’ ^ ‘N’). Where ‘X’ and ‘N’ are two integers."

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2. Implement Stack With Linked List
Moderate
30m average time
73% success
0/80
Asked in companies
Paytm (One97 Communications Limited)IndiaMartOYO

You must implement the Stack data structure using a Singly Linked List.


Create a class named 'Stack' which supports the following operations(all in O(1) time):


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3. Pair Sum
Easy
15m average time
90% success
0/40
Asked in companies
OlaOpenTextGrofers

You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to return the list of all pairs of elements such that each sum of elements of each pair equals 'S'.

...
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4. Technical Questions

What is context Switching?
What are the joins?

It started with a discussion of my projects and internship.

03
Round
Medium
Video Call
Duration60 Minutes
Interview date10 Jan 2021
Coding problem2
1. Search In Infinite Sorted 0-1 Array
Easy
10m average time
90% success
0/40
Asked in companies
OptumQualcommTata Consultancy Services (TCS)

You are given an infinite array consisting of only ones and zeroes, in sorted order. You have to find the index of the first occurrence of 1.

Example:
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2. Technical Questions

What is Normalization?

What is LRU cache? How to implement it? Any real-life example where LRU is used?

What are the normal forms? Explain any three normal forms.

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