L&Tinfotech interview experience Real time questions & tips from candidates to crack your interview
Graduate Engineer Trainee
L&Tinfotech
3 rounds | 3 Coding
problems
Rejected
Interview preparation journey
Journey
I started with zero coding experience and began learning the basics through online courses. I practiced coding challenges, joined online communities like GitHub and Stack Overflow, and developed my soft skills.
I attended numerous interviews with different companies, facing rejections—sometimes in the technical round, and other times in the HR round. However, I didn’t give up. I worked on my mistakes, and eventually, I was selected by a company.
Application story
It was an on-campus opportunity for me. The selection process at L&T Infotech is rigorous, consisting of four rounds designed to assess a candidate's overall abilities.
The first round is a multiple-choice test evaluating aptitude, communication, and technical skills. Candidates who clear this round advance to the second round, a coding test that assesses their programming abilities. The third round is a technical interview, where candidates are evaluated on their technical expertise. Finally, the fourth round is an HR interview, which focuses on assessing the candidate's cultural fit and overall personality.
Why selected/rejected for the role?
I was rejected due to a lack of direct experience with specific industry tools and software. Additionally, I had listed various certifications on my resume that I earned during college but hadn’t reviewed thoroughly. Most of the questions were based on those certifications, where I struggled to provide satisfactory answers.
Preparation
Duration: 2 Months
Topics: Data Structures, OS, DBMS, OOPS, JAVA, AWS, SQL
Tip 1: Practice on coding platforms.
Tip 2: Understand the basics and practice coding questions.
Tip 3: Work on meaningful projects.
Application process
Where: Campus
Eligibility: Above 60% in 10 and 12th and minimum 65% in Graduation, (Salary Package: 4.5 LPA)
Tip 1: Keep your resume concise and include impressive projects.
Tip 2: List only the skills and knowledge you are confident about.
Interview rounds
01
Round
Easy
Online Coding Interview
Duration90 minutes
Interview date6 Sep 2022
Coding problem0
It was in the afternoon. It consists of MCQs based on aptitude technical and verbal knowledge.
02
Round
Medium
Online Coding Test
Duration60 minutes
Interview date9 Sep 2022
Coding problem1
The test link will remain active for approximately 10-12 hours. You can take the test anytime before the deadline. There were two coding questions.
1. Longest Substring Without Repeating Characters
Moderate
20m average time
80% success
0/80
Asked in companies
Given a string 'S' of length 'L', return the length of the longest substring without repeating characters.
Example:
Suppose given input is "abacb", then the length of the longest substring without repeating characters will be 3 ("acb").
Problem approach
- Create a hashmap to store the characters in the string as keys and their indices as values.
- Initialize two pointers, start and end, at the beginning of the string.
- Iterate over the string using the end pointer.
- For each character, check if it exists in the hashmap. If it does, update the start pointer to the index right after the previous occurrence of the character.
- Update the hashmap with the current character and its index.
- Keep track of the maximum length of the substring without repeating characters.
- Return the longest substring without repeating characters.
03
Round
Easy
HR Round
Duration30 minutes
Interview date24 Sep 2022
Coding problem2
It was a technical interview round.
1. Java and C++
Difference between Java and C++ and basic easy coding questions. (Learn)
2. AWS Questions
There were questions related to AWS, as it was listed on my resume, including topics like EC2 instances and IAM.
Problem approach
Tip 1: You should be familiar with the certifications related to what you have studied.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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