Tata 1mg interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Tata 1mg
3 rounds | 4 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 months
Topics: Data structures, Algorithms, Javascript basic, Javascript advanced, React JS, Redux, Performance optimization
Tip 1 : Be consistent
Tip 2 : Have a growth mindset
Application process
Where: Linkedin
Tip 1 : Have a single page resume
Tip 2 : Don't add unnecessary things
Interview rounds
01
Round
Medium
Video Call
Duration60 minutes
Interview date1 Jun 2021
Coding problem2
It was coding round consisting of 2 questions
1. Non-Decreasing Array
Moderate
35m average time
65% success
0/80
Asked in companies
You have been given an integer array/list 'ARR' of size 'N'. Write a solution to check if it could become non-decreasing by modifying at most 1 element.
We define an array as non-decreasing, if ARR[i] <= ARR[i + 1] holds for every i (0-based) such that (0 <= i <= N - 2).
Problem approach
Tip 1 : Practice from online coding platforms
2. Reverse Linked List
Moderate
15m average time
85% success
0/80
Asked in companies
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 -> 3 -> 4-> NULL. Then the reverse linked list is 4 -> 3 -> 2 -> 1 -> NULL and the head of the reversed linked list will be 4.
Follow Up :
Can you solve this problem in O(N) time and O(1) space complexity?
Problem approach
Apply 2 pointers approach
02
Round
Medium
Video Call
Duration60 minutes
Interview date2 Jun 2022
Coding problem1
It was comparatively an easier round with just questions around JS.
1. JavaScript Question
- What is equality in JavaScript ?
- Given a string, reverse each word in the sentence
- Explain what a callback function is and provide a simple example
Problem approach
Tip 1 : Go through the JS concepts
Tip 2 : Also focus on theory concepts
03
Round
Medium
Video Call
Duration60 minutes
Interview date3 Jun 2022
Coding problem1
It was a system design round. Only one question was asked in this round
1. System Design
Design previous org architecture
Problem approach
Tip 1 : Practice some basic System Design Questions
Tip 2 : Go through previous interview experiences
Here's your problem of the day 
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Skill covered: Programming
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