Lcube creation interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
Lcube creation
3 rounds | 5 Coding
problems
Selected Interview preparation journey
Journey
Started coding when I was in 1st year. I got to know that to get an internship we have to do coding.
I started with basic coding and started with hacker rank and gradually increased the difficulty of the problem. After that I moved to leetcode and solved problems on the basis of tags first easy then medium then hard.
Application story
This company visited to my campus for the placement. We just had to upload resume and filled all details in the form.
Why selected/rejected for the role?
I was selected because I had developed skills like DSA, problem-solving, and Logical building ability. I also prepared for the HR round because all the questions asked in the HR round I was already familiar with them because of my extracurricular activities and that's why I was capable to answer them correctly.
Preparation
Duration: 4 months
Topics: Data Structures, Algorithms, System Design, Aptitude, OOPS
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Application process
Where: Campus
Eligibility: Above 7 CGPA
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Interview rounds
01
Round
Medium
Video Call
Duration50 minutes
Interview date18 May 2021
Coding problem2
Technical round with questions on programming
1. Check Permutation
Easy
15m average time
85% success
0/40
Asked in companies
You have been given two strings 'STR1' and 'STR2'. You have to check whether the two strings are anagram to each other or not.
Note:
Two strings are said to be anagram if they contain the same characters, irrespective of the order of the characters.
Example :
If 'STR1' = “listen” and 'STR2' = “silent” then the output will be 1.
Both the strings contain the same set of characters.
Problem approach
The first and the foremost condition for two strings to be the permutations of each other is that the frequency of each element in both of them should be the same.
It can be proven by a very simple argument that we are only rearranging the letters, and not adding or deleting any character.
So we allocate an array of size 256 (that is the number of distinct ASCIIacharactersterst to store the frequency.
For the first string, we increase the frequency of each of the characters and for the second one, we decrease one for every character encountered.
In the end, we check that each of the elements of this frequency array is 0 (total additions by the first string are exactly nullified by the second string).
If it is not zero we return false else we return true.
2. Ninja's Encryption
Easy
15m average time
85% success
0/40
Asked in companies
Ninja has created his own encryption technique to encrypt a number. He makes use of the logic behind factorial. In a factorial, we multiply the number by its previous number and so on but if we want to encrypt a number we don’t multiply in every step like in the case of factorial but multiply, divide, add and subtract and repeat in the same order.
So your task is to find the encrypted form of a number using the ninja encryption technique and you were being provided with the number.
Problem approach
The idea is to simply encrypt each character using switch case statement or if-else ladder, where output character for each input character is taken care of.
02
Round
Easy
Video Call
Duration45 minutes
Interview date18 May 2021
Coding problem2
Technical round with questions on Java and OOPs Questions.
1. Java Questions
1.Difference between array and array list
2.Difference between interface and abstract class
3.Thread
4.Exception Handling and types
2. OOPs Questions
What is Interface?
What is inheritance?
03
Round
Easy
HR Round
Duration30 minutes
Interview date18 May 2021
Coding problem1
The HR questioned me on C,Java,Web languages(HTML,CSS, javascript).
1. Basic HR Questions
1. What are your strengths and weakness?
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is recursion?
Choose another skill to practice
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