1st Round Questions: 1. Find a pair in a rotated sorted array whose sum is equal to a given value 'k' 2. Check parenthesis in an expression and return true/false for valid/invalid. 3. Bottom view of a Binary tree. Questions related to Java Collections 2nd Round Questions: 1. Parking lot low level design. 2. Design patterns - Singleton, Factory etc 3. Various questions related to advanced multithreading in java.
Round 1. Tweaked version of this - https://www.geeksforgeeks.org/problems/bottom-view-of-binary-tree/1 Given a tree, find bottom view - 1 / \ 3 2 / \ / \ 4 5 6 7 Expected output - 4 3 5 6 2 7 (Not 4 3 6 2 7)
What is http? What are http headers? What are the methods? What are http verbs?
Q. Design a tailf command like functionality Q. Tell me about your previous company experience and how u handled pressure situation ?
Explain one of your project
Why are signals RED in color for stop?
how would you tune SQL queries
Tech stack from the previous company
about system design and dsa
they had a dsa round+ system design round+ hr round. dsa round was an interval sort question on compiler.
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