Lenskart interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Lenskart
2 rounds | 4 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 3
Topics: Data Structures, Algorithms, OOPs, DBMS, SQL, Web Development
Tip 1 : Do not rush into things. Learning takes time. Focus should be on the concepts and not just on leaving topics half-prepared. Devote 70% of both time and effort to DSA. I solved a total of around 500 questions on sites like GFG and Leetcode. Do not repeat similar questions just to increase the count of the number of questions
Tip 2 : Competitive Programming is a bonus and not a necessity, rather focus on core DSA based problems before trying CP. Do not pursue CP if you do not like it. Devote that extra time to core CS subjects and aptitude preparation.
Tip 3 : Projects play an important role too, do no ignore them. Try to get your hands dirty with a little bit of every field i.e., frontend, backend, and database.
Application process
Where: Campus
Eligibility: Above 7 CGPA
Tip 1 : Try to make a single-page resume. Highlight skills, projects, and work experience more than CGPA. Ensure proper spacing and font to maintain professionalism.
Tip 2 : Does not lie on a resume. Everything written on your resume must be known by you in and out.
Interview rounds
01
Round
Easy
Video Call
Duration45
Interview date5 Dec 2021
Coding problem2
1. Minimize the Maximum
Easy
15m average time
85% success
0/40
Asked in companies
You are given an array of N integers and an integer K. For each array element, you are allowed to increase or decrease it by a value k. The task is to minimize the difference between the maximum element and the minimum element after modifications.
Problem approach
You are given an array of N integers and an integer K. For each array element, you are allowed to increase or decrease it by a value k. The task is to minimize the difference between the maximum element and the minimum element after modifications.
2. Minimum Number of Platform Needed
Easy
23m average time
85% success
0/40
Asked in companies
You are given the arrival and departure times of N trains at a railway station in a day. You need to find the minimum of platforms required for the railway station such that no train waits i.e No train should wait for the platform to be clear or free.
Problem approach
You are given the arrival and departure times of N trains at a railway station in a day. You need to find the minimum of platforms required for the railway station such that no train waits i.e No train should wait for the platform to be clear or free.
02
Round
Easy
Video Call
Duration45
Interview date5 Dec 2021
Coding problem2
1. Climbing the leaderboard
Moderate
15m average time
80% success
0/80
Asked in companies
Given a leaderboard of a game with the following ranking pattern:
The player with the highest score is ranked number 1 on the leaderboard.
Players who have equal scores receive the same ranking number, and the next player(s) receive the immediately following ranking number.
You are given game scores of a player of ‘M’ rounds. Your task is to return the position obtained in each round.
Note:
The leaderboard scores are in descending order.
The game scores are given in ascending order.
Problem approach
Given a leaderboard of a game with the following ranking pattern:
The player with the highest score is ranked number 1 on the leaderboard.
Players who have equal scores receive the same ranking number, and the next player(s) receive the immediately following ranking number.
You are given game scores of a player of ‘M’ rounds. Your task is to return the position obtained in each round.
Note:
The leaderboard scores are in descending order.
The game scores are given in ascending order.
2. DBMS
What is Foreign key
Problem approach
A foreign key is a set of attributes in a table that refers to the primary key of another table. The foreign key links these two tables.
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Skill covered: Programming
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