PrepTrain 6 Companies - 30 Days DSA Challenge

Test your DSA skills and prepare for software development interviews with the PrepTrain 6 Companies - 30 Days DSA Challenge! Win prizes, get feedback from experienced professionals, and learn from professionals working in top tech companies.

Coding Ninjas Contest Page link

About this event :

The PrepTrain 6 Companies - 30 Days DSA Challenge is a free online challenge designed to help students prepare for software development interviews. The challenge will challenge students to solve 90 problems targeting the most famous product based companies in a duration of 30 days with consistency.


The DSA Challenge event is scheduled to start on 1st November and finish on 30th December


In the DSA Challenge , Each Day 2 DSA Problems and One Problem related to Core CS Subjects (Operating System / DBMS / OOPS / Networking ) will be given specific to a particular product based company and PrepTrain will be inviting Professionals from These company ( SDE / SDM / Hiring Managers) on Weekends to share their experience and guidance to college students on how to become a batter software developers.

These are the Planned companies :

  • Amazon
  • Microsoft
  • Google
  • ShareChat
  • Adobe
  • Walmart

Rules :

Participating in this challenge will be very straightforward for our participants , and these are the steps they need to follow:

  • Participants will begin by creating a post on LinkedIn or any other social media platform with a predefined hashtag #PrepTrain6Companies30DaysChallenge , announcing their commitment to this challenge. After posting,they will fill out a google form giving details of their github and announcement post.
  • Participants will then register for the challenge on Coding Ninja Platform. This registration will grant them access to an exclusive leaderboard, allowing them to monitor their progress and prepare accordingly.
  • Participants will then create a GitHub repository where they will commit all their code submissions. This repository serves as a means to verify that participants have adhered to ethical practices.
  • Each day 2 DSA problems and 1 Core CS Problem will be unlocked specific to the company of the week.
  • Once participants have successfully solved all the problems, they will share their accomplishment on Social media and fill out another form mentioning their github repository and Announcement post details.

Benefits :

PrepTrain 6 Companies - 30 Days DSA Challenge will be a valuable experience for participants who are serious about pursuing a career in software development. The challenge can help participants to improve their coding skills, increase their confidence, enhance their resume, prepare for job interviews, and receive feedback from experienced professionals.

  • All participants who complete the PrepTrain DSA Challenge and participate in PrepHack 2023 Hackathon will be given referrals for top tech companies and startups from PrepTrain Community Mentors group whenever the openings will come.
  • Special mentoring session on how to plan the things after this challenge - related to projects , revision , CS Fundamentals, Interview Tips , CV building workshop etc will be organised by PrepTrain for students who will complete the challenge.
  • Top 5 Participants and 10 Random Participants who will complete the challenge successfully will be receiving prizes and Amazon Voucher worth 1000.
  • Two students who will complete the challenge from the Top 20 placement cell from where the number of participants > 250 , will be awarded with Amazon Vouchers worth 500.
  • Sharing achievements on social media not only builds personal brand but also earns public recognition within the PrepTrain community, showcasing dedication and skill to a wider audience.
  • Participants will have the opportunity to learn from and network with professionals from top tech companies.
  • The challenge is a challenging one, and completing it requires discipline and perseverance. These qualities are highly valued by employers, and developing them through the challenge can make participants more competitive in the job market.

Frequently Asked Questions

Here are some of the most asked questions we have :

When and where the winners be announced?

On this page itself, you will have the winners name updated on challenge completeion. Additionally it will be posted on PrepTrain Telegram Community as well.

Where do I ask my questions directly?

You can go to the Sheet directly, and check out the FAQ section in the sheet. In case you still have questions after that, please send it to us at reachout@preptrain.in

How is the leaderboard calculated?

It will be ranked by the number of problems solved, in the case of ties, it ranks on the basis of who solved it first.

Can I skip posting on social media?

Yes you can, but then you will be not eligible to claim for prizes. In the past we have seen people who have posted in public, were the ones who completed the sheet, the others left midway. Once you commit, there is no going back.

Do I get to choose any particular prize?

No, unfortunately not, it will be randomised.

Helping Students Maximize Potential.

Join Telegram Community

Your gateway to mentorship, job opportunities, and industry insights for college students pursuing software development careers.