Round 1 - Coding - 60 mins

• RIght side view of Binary Tree
• Minimum Sum Subarray partition
• One more LC Easy/Medium kadane's theorem.

Round 2 - Coding - 60 mins

• Clone LL
• Define Data-Structure to store Key count at each timestamp with minimum put and get (Don't remember exact question but it was from Walmart Past Exp.

Round 3 - Java - 60 mins
(Couln't make sense of this round; too much grilling over language).

• How will you debug when you don't have dashboards, metrics and your host memory is increasing suddenly - Inshort wanted me to talk about GC.
• Java memory model.
• Multithreading (Too many questions over this.)
• Asked me to code multithread Program to print even odd number sequentially.

Round 4 - System Design - HLD

• Starting 30 mins discussion over Project, in depth.
• In last 30 mins he asked system design (I was like, if you want to evaluate over system design atleast give me complete 60 mins)
• Design " Past Purchase Page for any E-commerce Website" -
  • Features : Reflecting past purchases along with OrderId, Amount and List of items
  • On click of any orderId, display Price distribution of each item.
  • Search capability, if my past purchases have apple, you should revert back list of OrderId's
  • Filter based on time.
  • There was one more feature not able to recall.

Verdict : Rejected in System design Round.