Tata consultancy services Ltd interview experience Real time questions & tips from candidates to crack your interview

SDE - 1

Tata consultancy services Ltd
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2 rounds | 3 Coding problems

Interview preparation journey

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Preparation
Duration: 6 Months
Topics: Data Structures, Algorithms, OOPS, Dynamic Programming
Tip
Tip

Tip 1 : Practice popular questions from Arrays, Binary Trees, LinkedLists from CodeStudio's Interview Problems
Tip 2 : Make sure you are aware of calculating the time and space complexity for every problem you're coding.
Tip 3 : Prepare through Mock Interviews to practice explaining your approach while solving in an actual interview.

Application process
Where: Company Website
Eligibility: Above 7 CGPA
Resume Tip
Resume tip

Tip 1 : Describe best of your projects in minimum words. Don't forget to add buzz words like REST APIs/ DB Indexing/ Benchmarking etc if you worked on backend.
Tip 2 : Don't add school achievements like Olympiads or Class Topper in your resume.
Tip 3 : If you've some work experience, put it in a way ,you're marketing yourself. Add terms like 'Created/Owned the Project through entire SDLC'
Tip 4 : Make sure you mention how your work experience actually impacted the company. Or how your self project can be actually useful to end user.

Interview rounds

01
Round
Easy
Video Call
Duration45 Minutes
Interview date12 Mar 2022
Coding problem2

1. Minimum Sum in matrix

Moderate
15m average time
85% success
0/80
Asked in companies
OlaInfosysTech Mahindra

You are given a 2D matrix ‘ARR’ of size ‘N x 3’ having integers, where ‘N’ is the number of rows.

Your task is to find the smallest sum possible while taking one element from each row.

The rules for selecting elements are as follows-

1. In a row, after selecting an element at a given position, you cannot select the element directly below it
2. You can only select elements that are not directly below the previously selected element.
Problem approach

You are given a 2D matrix ‘ARR’ of size ‘N x 3’ having integers, where ‘N’ is the number of rows.
Your task is to find the smallest sum possible while taking one element from each row

Try solving now

2. Rotate array

Easy
25m average time
80% success
0/40
Asked in companies
OYOWells FargoLinkedIn

Given an array 'arr' with 'n' elements, the task is to rotate the array to the left by 'k' steps, where 'k' is non-negative.


Example:
'arr '= [1,2,3,4,5]
'k' = 1  rotated array = [2,3,4,5,1]
'k' = 2  rotated array = [3,4,5,1,2]
'k' = 3  rotated array = [4,5,1,2,3] and so on.
Problem approach

Given an array with N elements, the task is to rotate the array to the left by K steps, where K is non-negative.

Try solving now
02
Round
Easy
HR Round
Duration30 Minutes
Interview date12 Mar 2022
Coding problem1

1. Basic HR questions

What is your preferred Job Location?

Are you comfortable with night shifts?

Have you got any other offers?

Problem approach

Tip 1 : Don't Hesitate to clarify any doubt if not been able to understand .
Tip 2 : Speak Confidently and clearly. without any pressure 
Tip 3 : Join the meeting 10-15 mins prior and check if you have a stable internet connection if interview is conducted virtually.

Here's your problem of the day

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

Skill covered: Programming

Which SQL clause is used to specify the conditions in a query?

Choose another skill to practice
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