LTI - Larsen & Toubro Infotech interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
LTI - Larsen & Toubro Infotech
3 rounds | 4 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 months
Topics: DBMS, Data Structure, C , C++ language, HTML, CSS,SQL, Java
Tip 1: You need a strong aptitude for knowledge as a first tip
Tip 2: Solve questions from previous coding questions
Tip 3: Make sure your resume includes at least two projects
Application process
Where: Linkedin
Eligibility: Percentage in 10th, 12th and graduation should be more than 60 %
Tip 1: Have at least 2 good projects mentioned in your resume with a link
Tip 2: Focus on skills, internships, projects, and experiences.
Tip 3: Make it simple, crisp, and one page
Interview rounds
01
Round
Easy
Online Coding Interview
Duration90 mins
Interview date1 Sep 2020
Coding problem2
It was an aptitude round consisting of 6 sections Quant, Verbal, Logical, (DBMS, C, C++), Coding Q(Basic), and a SQL program.
Though it had 6 Sections we were told only the first 4 to concentrate on it had the Maximum marks.
1. Search an Element in an Array
Easy
15m average time
80% success
0/40
Asked in companies
You have given a sorted array 'A' of 'N' integers.
Now, you are given 'Q' queries, and each query consists of a single integer 'X'. Your task is to check whether 'X' is present in array 'A' or not for each query. If 'X' exists in array 'A', you need to print 1 else print 0.
Note :
The given array is sorted in non-decreasing order.
Problem approach
class Solution {
public int searchInsert(int[] nums, int target) {
if (target < nums[0]) return 0;
else if (target > nums[nums.length-1]) return nums.length;
int left = 0, right = nums.length, mid;
while (right > left) {
mid = left + (right - left) / 2;
if (nums[mid] == target) return mid;
if ((right - left) == 1 && nums[left] < target && nums[right] > target)
return right;
if (nums[mid] < target) left = mid;
else right = mid;
}
return nums.length;
}
}
2. SQL Questions
Write a SQL query program to find all the records of employees having age less than 45.
Solution: Select * from Employee where age < 45
Problem approach
Tip 1: Practice making sql queries before the interview
Tip 2: Learn about CRUD Operations using the SQL query
02
Round
Easy
Video Call
Duration45 mins
Interview date10 Sep 2020
Coding problem1
It was a technical Interview, interviewers were very friendly. There was one coding question from strings. And they have asked about the projects which I mentioned in my resume.
1. Check If The String Is A Palindrome
Easy
10m average time
90% success
0/40
Asked in companies
You are given a string 'S'. Your task is to check whether the string is palindrome or not. For checking palindrome, consider alphabets and numbers only and ignore the symbols and whitespaces.
Note :
String 'S' is NOT case sensitive.
Example :
Let S = “c1 O$d@eeD o1c”.
If we ignore the special characters, whitespaces and convert all uppercase letters to lowercase, we get S = “c1odeedo1c”, which is a palindrome. Hence, the given string is also a palindrome.
Problem approach
class Solution {
public boolean isPalindrome(String s) {
int l = 0;
int r = s.length() - 1;
while (l < r) {
while (l < r && !Character.isLetterOrDigit(s.charAt(l)))
++l;
while (l < r && !Character.isLetterOrDigit(s.charAt(r)))
--r;
if (Character.toLowerCase(s.charAt(l)) != Character.toLowerCase(s.charAt(r)))
return false;
++l;
--r;
}
return true;
}
}
03
Round
Easy
HR Round
Duration15 mins
Interview date15 Sep 2020
Coding problem1
This was an HR Round, HR asked various behavioral questions during this interview.
1. Basic HR Questions
Tell me about yourself
Tell me about the most challenging project
Where do you see yourself in next 5 years
Tell me about the basic pillars of OOPs
what are acid properties
Will you join us if you win lottery of 10 Lakhs
Am I ready to relocate to any location in India
Problem approach
Tip 1: Make sure your resume is up-to-date
Tip 2: Be confident and focus on your communication
Tip 3: Prepare for the behavioral questions
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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