'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
Fullstack Developer
Paytm (One97 Communications Limited)
upvote
share-icon
4 rounds | 8 Coding problems
Interview preparation journey
expand-icon
Preparation
Duration: 3 months
Topics: Data Structures, Java Fundamentals, OOPS, Design Patterns, DBMS
Tip
Tip

Tip 1 : Practice Standard Dynamic Programming and Graph Theory Questions
Tip 2 : If you know Java, Be well versed with Fundamentals 
Tip 3 : Have atleast one Good Project you can talk about

Application process
Where: Campus
Eligibility: Above 7 CGPA
Resume Tip
Resume tip

Tip 1 : Keep it Concise
Tip 2 : Only Mention Stuff you know

Interview rounds
01
Round
Easy
Online Coding Interview
Duration90 Minutes
Interview date10 Aug 2020
Coding problem1

MCQ based on web and oops.

1. Subtree of Another Tree
Easy
10m average time
90% success
0/40
Asked in companies
Thought WorksInfo Edge India (Naukri.com)GE (General Electric)

Given two binary trees T and S, check whether tree S has exactly the same structure and node values with a subtree of T, i.e., check if tree S is a subtree of the tree T.

View more
Try solving now
02
Round
Easy
Video Call
Duration50 Minutes
Interview date17 Aug 2020
Coding problem1

This round involved a discussion of a project I had undertaken recently and a coding problem. How does an Angular application work? List out differences between AngularJS and Angular

1. Count Ways To Reach The N-th Stairs
Moderate
30m average time
80% success
0/80
Asked in companies
Paytm (One97 Communications Limited)BNY MellonGoldman Sachs

You have been given a number of stairs. Initially, you are at the 0th stair, and you need to reach the Nth stair.


Each time, you can climb either one step or two steps.


View more
Try solving now
03
Round
Medium
Video Call
Duration80 Minutes
Interview date17 Aug 2020
Coding problem5

The interview mostly focused on coding problems and Java-related concepts.

1. Java Question

How is Linked List Implemented in java and when will you prefer it over ArrayList

2. Prerequisite Task
Moderate
35m average time
65% success
0/80
Asked in companies
AmazonPaytm (One97 Communications Limited)Amazon

You are given a positive integer ‘N’ denoting the number of tasks you need to finish. You can directly start performing any task, but some tasks have som...

View more
Try solving now
3. OOPS Questions

OOPs Questions,
Discussion on Singelton Design Pattern

4. DBMS Questions

What is Normalisation and different Normal Forms for a Relational Table?
What is Indexing?
A discussion on Fn. dependencies

5. Kth Smallest and Largest Element of Array
Easy
15m average time
70% success
0/40
Asked in companies
AccentureGoldman SachsAmazon

You are given an array ‘Arr’ consisting of ‘N’ distinct integers and a positive integer ‘K’. Find out Kth smallest and Kth largest element of the array. It is guaranteed that K is ...

View more
Try solving now
04
Round
Easy
Video Call
Duration30 Minutes
Interview date17 Aug 2020
Coding problem1

This was the Hiring Manager Round. What is a Primary Key? What is a Cross-Join? What is the difference between Clustered and Non-clustered index?

1. Search In A Row Wise And Column Wise Sorted Matrix
Moderate
15m average time
80% success
0/80
Asked in companies
DirectiZomatoPaytm (One97 Communications Limited)

You are given an 'N * N' matrix of integers where each row and each column is sorted in increasing order. You are given a target integer 'X'.


View more
Try solving now
Start a Discussion
Similar interview experiences
company logo
Fullstack Developer
4 rounds | 10 problems
Interviewed by Paytm (One97 Communications Limited)
887 views
0 comments
0 upvotes
company logo
Fullstack Developer
1 rounds | 2 problems
Interviewed by Paytm (One97 Communications Limited)
158 views
0 comments
0 upvotes
company logo
Fullstack Developer
4 rounds | 9 problems
Interviewed by Paytm (One97 Communications Limited)
170 views
0 comments
0 upvotes
company logo
Fullstack Developer
4 rounds | 6 problems
Interviewed by Paytm (One97 Communications Limited)
0 views
0 comments
0 upvotes
Companies with similar interview experiences
company logo
Fullstack Developer
6 rounds | 5 problems
Interviewed by Microsoft
893 views
0 comments
0 upvotes
company logo
Fullstack Developer
2 rounds | 2 problems
Interviewed by Samsung
793 views
0 comments
0 upvotes
company logo
Fullstack Developer
2 rounds | 2 problems
Interviewed by Amdocs
743 views
0 comments
0 upvotes