'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'
Paytm (One97 Communications Limited) interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
Paytm (One97 Communications Limited)
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3 rounds | 7 Coding problems
Interview preparation journey
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Preparation
Duration: 6 months
Topics: Data Structures, OOPS, Algorithms, C++, Development
Tip
Tip

Tip 1 : Do at least 1 project in any technology
Tip 2 : Learn DSA at least these topics Array, LL, Tree, DP

Application process
Where: Referral
Eligibility: No criteria
Resume Tip
Resume tip

Tip 1 : At least mention the projects and internships on your resume.
Tip 2 : Avoid unnecessary details like Hobbies, declaration, date.

Interview rounds
01
Round
Easy
Online Coding Test
Duration60 minutes
Interview date24 Nov 2020
Coding problem3

Coding round with 3 coding questions.

Hard
20m average time
80% success
0/120
Asked in companies
AmazonPaytm (One97 Communications Limited)Uber

You are given an arbitrary binary tree, a node of the tree, and an integer 'K'. You need to find all such nodes which have a distance K from the given node and return the list of these nodes.

...
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2. Rahul And Minimum Subarray
Moderate
0/80
Asked in companies
JP MorganArcesiumPaytm (One97 Communications Limited)

Rahul is a programming enthu...

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3. Encrypt The Digits
Easy
10m average time
90% success
0/40
Asked in companies
MicrosoftPaytm (One97 Communications Limited)

Given a numeric string ‘STR’ which is a string containing numeric characters from ‘0’ to ‘9’, you have to encrypt the string by changing each numeric character as shown below:

‘0’ -> ‘9’

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02
Round
Medium
Video Call
Duration50 minutes
Interview date9 Dec 2020
Coding problem2

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

1. Diagonal Traversal of a binary tree.
Easy
10m average time
90% success
0/40
Asked in companies
Expedia GroupOlaMicrosoft

You have been given a binary tree of integers. You are supposed to find the diagonal traversal(refer to Example) of the given binary tree.

Example:

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2. Parth And His OCD
Easy
0/40
Asked in company
Paytm (One97 Communications Limited)

Parth is a nerd programmer. He has started learning array/list progr...

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03
Round
Easy
Video Call
Duration50 minutes
Interview date9 Dec 2020
Coding problem2

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

1. Subset Sum Equal To K
Moderate
30m average time
65% success
0/80
Asked in companies
HCL TechnologiesAtlassianDunzo

You are given an array/list ‘ARR’ of ‘N’ positive integers and an integer ‘K’. Your task is to check if there exists a subset in ‘ARR’ with a sum equal to ‘K’.

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2. Next Greater Element
Easy
10m average time
90% success
0/40
Asked in companies
Tata Consultancy Services (TCS)IBMNatwest Group

You are given an array 'a' of size 'n'.



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