Arcesium Senior SE Interview Experience

Round 1:

Hacker Rank Test
1. Stock value decreases value by 1 or multiplied by 2 end of every day. Given Stock of price x. How many days does it take to become y .
2. Given Array of integers, maximum segment length such that product is positive.
3.One ore question of similar difficulty.

Round 2:

  • Quick Introduction.
  • What is the database used in current company?
  • When should we use no sql over sql.
  • in terms of performance how can no sql perform better.
  • What is costlier – read or write to db.
  • Explain index.
  • Difference between sleep() and wait().
  • Difference between synchronized and lock interface.
  • What java version do we use and if we use any of the java 8 features in the code.

Round 3:


You can only spend n hours in library . You have list of books and amount of time to read it. But you can only read in the given order . For example you have n=12 hrs and time to read books is 5, 2, 1, 3, 9, 5, 1, 3 Ans: 4 [5, 2, 1, 3, ] .

For n=12 and time – 5, 2, 1, 3, 9, 5, 1, 3, 2, 1, 4   Ans: 5 [1, 3, 2, 1, 4]

We agreed that we could solve it using sliding window approach.


Quick discussion about AVL and red black trees

Hashmap, Hashtable

Round 4:

  • Mutable Classes
  • Locking classes and objects
  • Low level design for BookMyShow
  • Why would you choose SQL over no sql
  • ACID properties


Each round is properly time boxed and lasted around 40-60 mins. Rounds 2-4 happened on same day . Recruiters planned them really well, no waiting time and quick feedback for next rounds.

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