Tata Consultancy Services (TCS) interview experience Real time questions & tips from candidates to crack your interview
System Engineer Specialist
Tata Consultancy Services (TCS)
2 rounds | 2 Coding
problems
Selected Interview preparation journey
Journey
There were 3 rounds of Interview. In Introduction, I spoke a lot of things about Cloud. So, most of the interview was based on Cloud Computing only. There was technical questions related to Java where they asked one code to write as well. That was based on arrays. Then there was HR round where they asked all the basic and some tricky questions.
Application story
TCS came to our University and it was first company which came for selecting jobs for Digital candidates. I was excited to know this so I prepared well for the coding round and was ready with the interview as I went through a lot of previous coding problems and interviews that were conducted by TCS.
Why selected/rejected for the role?
Because I was confident and was prepared pretty much for coding and Interview. Also it was like I was driving the interview as whatever I spoke that was my next question and I did that deliberately to make myself comfortable in answering all the questions.
Preparation
Duration: 2 months
Topics: DSA, OOPS, Networking, Latest Technologies, Dynamic Programming, Cloud Computing
Tip 1 : Practice coding in various platforms daily
Tip 2 : Whatever you will speak just speak carefully as that is the next question in interview
Tip 3 : Speak confidently and don't hesitate. Also don't speak wrong about anything, if you don't know just say you don't know
Application process
Where: Campus
Eligibility: Above 7
Tip 1: Make resume clean and simple
Tip 2: Don't put anything you don't know as they will ask a lot of questions from your resume itself
Interview rounds
01
Round
Medium
Online Coding Interview
Duration90 minutes
Interview date10 May 2021
Coding problem1
1. Fractional Knapsack
Easy
15m average time
85% success
0/40
Asked in companies
You have been given weights and values of ‘N’ items. You are also given a knapsack of size ‘W’.
Your task is to put the items in the knapsack such that the total value of items in the knapsack is maximum.
Note:
You are allowed to break the items.
Example:
If 'N = 4' and 'W = 10'. The weights and values of items are weights = [6, 1, 5, 3] and values = [3, 6, 1, 4].
Then the best way to fill the knapsack is to choose items with weight 6, 1 and 3. The total value of knapsack = 3 + 6 + 4 = 13.00
Problem approach
Tip 1: Find the subproblem in the question
Tip 2: Create an iterative process for going over all subproblems
Tip 3: Determine what the solution will include
02
Round
Medium
Video Call
Duration50 minutes
Interview date28 May 2021
Coding problem1
1. Sort Array
Moderate
15m average time
85% success
0/80
Asked in companies
You are given an array consisting of 'N' positive integers where each integer is either 0 or 1 or 2. Your task is to sort the given array in non-decreasing order.
Note :
1. The array consists of only 3 distinct integers 0, 1, 2.
2. The array is non-empty.
Problem approach
I just used a simple logic that is
a=a+b
b=a-b
a=a-b
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
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