Freecharge interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Freecharge
3 rounds | 3 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 4 Months
Topics: Data Structures, Algorithms, OOPS, OS, DBMS
Tip 1 : Work on Competitive Programming skills. That is one thing most companies look out for during hiring. Solve at least 100
questions from every topic.
Tip 2 : You should have at least 2 good projects on your resume. Only write the things that you are completely sure of.
Tip 3 : Work on CS fundamentals as well like -OOPS, OS, and DBMS. There will be MCQ questions from this in the coding round as well as in the 1:1 round
Application process
Where: Campus
Eligibility: No criteria
Tip 1 : Need at least 2 good projects on the resume. Write a short 2-3 lines summary of the project and the tech stack
used.
Tip 2 : Resume should be 1 page only. Try to keep the Resume short with useful information only.
Tip 3 : Your Resume should clearly mention the skillset you have. Companies sometimes filter out Resume based on
skillset only
Interview rounds
01
Round
Easy
Face to Face
Duration60 Minutes
Interview date25 Jul 2020
Coding problem1
1. Detect and Remove Loop
Moderate
10m average time
90% success
0/80
Asked in companies
Given a singly linked list, you have to detect the loop and remove the loop from the linked list, if present. You have to make changes in the given linked list itself and return the updated linked list.
Expected Complexity: Try doing it in O(n) time complexity and O(1) space complexity. Here, n is the number of nodes in the linked list.
Problem approach
It can be easily solved by slow pointer, fast pointer approach
02
Round
Easy
Face to Face
Duration60 Minutes
Interview date27 Jul 2021
Coding problem1
1. DBMS Questions
He gave me a few SQL Queries to write. Also, he asked to design a database for a library management system
Problem approach
Tip 1: Practice SQL queries with joints(all types)
Tip 2: To write DB schema you must know about primary keys and how to store 1 to 1 mappings and 1 to many mappings in tables
Tip 3: Read about Transaction laws and lock
03
Round
Easy
HR Round
Duration45 minutes
Interview date30 Jul 2021
Coding problem1
1. Basic HR questions
Why do you want to work for our company?
Why do you want to change?
What are your greatest strengths and weaknesses?
What You are expecting from this role?
How would you rate yourself on a scale of 1 to 10?
Where do you see yourself in 5 years?
Problem approach
Tip 1: Prepare keep answers to some basic HR Questions ready before the interview
Tip 2: Keep answers short and to the point
Tip 3: Don't oversell yourself. For ex: sometimes people keep saying they are very hardworking and it's their weakness and all. Please don't say these things as it might give wrong impression to interviewer
Tip 4: Bluffing during the HR interview should be avoided
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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