Paytm interview experience | Set 26 (Experienced)

Round 1:

  1. Excel sheet column number representation
  2. Max profit in buy sell stock.
  3. Acid property of databases
  4. Hashmap implementation
  5. Swap linkedlist in pair of k
  6. Clustered indexes
  7. Isolation levels in SQL server
  8. Diff between hashing and encryption

Round 2:

  1. Design notification system
  2. Sort array of 0s and 1s
  3. Make the class immutable

Round 3:

  1. General discussion with manager about current project, work culture and job responsibilities

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