System design of chat app
Sviluppatore Backend Interview Questions
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swap 2 nos w/o using 3rd variable
how to ensure that new changes won't break the old part of code?
- Column update via rest endpoint?
It's a question from Ruby on Rails. There is a table named countries(id, name, code) and it contains records like [{1, India, In}, {2, China, Cn}]. Now if someone wants to do Country.India, it should return the corresponding code of that particular record. In the above mentioned case it will be 'In'. How will you implement it?
Given a maze in the form of an NxM grid, write a program to find a path from the start (upper-left) to the end (lower-right).
Pitfalls of using Lombok's toString annotation in entities?
Differences between API to event
Se já trabalhei com tecnologia X, Y e Z.
My approach to building a very high-load system?
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