OYO Interview Experience SDE-2

Round 1 – Online

1. Matrix spiral print
2. Print Cricket Scoreboard

Round 2 – F2F

1. Design Drink vending machine, where drinks are customizable, Class Diagram, Interaction of Classes and their behavior
2. Algorithm approach for reversing a linked list in groups of K alternatively
3. Indexes implementation in Database, SQL as well as NoSQL

Round 3 – F2F

1. Given a bag of weight W, and n items with individual weights w1, w2, ….wi, …w_n , wi >=0, Determine number of ways items are selected so that their sum is exactly W.
2. Determine if a Binary Tree is balanced
3. Given a stream of integers, find kth greatest number

Round 4 – F2F

1. Have you encountered a Production Bug, what was the approach
2. Top 5 things you look during code review
3. Description of current technical architecture
4. Top 5 things you look during design

Round 5 – F2F

1. Design a Parking Lot. Class Diagrams, Design Patterns
2. Given n ropes, find the minimum cost for joining all into a single rope
3. Difference between SQL and NoSQL, where to use

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