Skip to content
Related Articles

Related Articles

Improve Article

Paytm Interview Experience (5 Years Experienced)

  • Last Updated : 10 Jan, 2019

Round 1(Coding):

  1. Find the depth of JSON object.
  2. Given weight X, collect maximum stones from weight 1 to X, where don’t repeat the stones which already available with you.

    Eg. X=10 and stones already available (1, 2, 5), then only two stones can be picked. (3, 4), (3, 6), (4, 6)

Round 2:

  1. Given a 2D array find the sum of subarray on O(1) given the start and end coordinates of the array. You can precompute whatever you want.
  2. How will you iterate over a DAG? Ignore the node if you have already visited.

Round 3:

  1. Design WhatsApp.
  2. Questions after designing:
  3. How will you create persistent connections between the server and the client?
  4. What is the algorithm you will use for the load balancer?

  5. What is the technique you will use for load balancing in the database?
  6. In persistent connection how will you handle rate limiting?

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course. In case you are prepared, test your skills using TCS, Wipro, Amazon. GoogleE-Litmus and Microsoft Test Serieses.

My Personal Notes arrow_drop_up
Recommended Articles
Page :