Tata Consultancy Services (TCS) interview experience Real time questions & tips from candidates to crack your interview
System Engineer
Tata Consultancy Services (TCS)
2 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 3 months
Topics: Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic Programming,System Design, Link List and Graphs.
Tip 1 - Practice Atleast 250 Questions
Tip 2 - Ex- Do atleast 2 projects
Application process
Where: Company Website
Eligibility: Above 6 CGPA
Tip 1 : Have some projects on resume.
Tip 2 : Do not put false things on resume.
Interview rounds
01
Round
Easy
Video Call
Duration60 minutes
Interview date20 Jul 2021
Coding problem2
1. Longest Substring Without Repeating Characters
Moderate
30m average time
65% success
0/80
Asked in companies
Given a string input of length n, find the length of the longest substring without repeating characters i.e return a substring that does not have any repeating characters.
Substring is the continuous sub-part of the string formed by removing zero or more characters from both ends.
Problem approach
Given a string input of length n, find the length of the longest substring without repeating characters i.e return a substring that does not have any repeating characters.
2. Spiral Order Traversal of a Binary Tree
Easy
20m average time
75% success
0/40
Asked in companies
You have been given a binary tree of 'N' nodes. Print the Spiral Order traversal of this binary tree.
For example
For the given binary tree [1, 2, 3, -1, -1, 4, 5, -1, -1, -1, -1]
1
/ \
2 3
/ \
4 5
Output: 1 3 2 4 5
Problem approach
You have been given a binary tree of 'N' nodes. Print the Spiral Order traversal of this binary tree.
02
Round
Easy
HR Round
Duration30 minutes
Interview date20 Jul 2021
Coding problem1
There were 1 interview present in the meeting. The interviewer was polite and calm.
1. Basic HR Questions
Tell us about yourself and your projects
Where do you see yourself in next 5 years
will you accept bond of our company.
One person you admire? and what learnings you have learnt from him/her .
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
To make an AI less repetitive in a long paragraph, you should increase:
Choose another skill to practice
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