SDE - 2

Tip 1 : Practice machine coding very much
Tip 2 : read question thoroughly, don't assume anything without cross checking
Tip 3 : try to implement mandatory requirements before jumping to bonus and all

Tip 1 : Practice array traversals and pointers
Tip 2 : try to optimise always
Tip 3 : being with brute force approach and slowly remove the repetition in approach

Tip 1 : Practice tree traversal and variations of tree traversal
Tip 2 : practice tree recursion and how it save data throughout iteration
Tip 3 : do as much question of tree as possible

LLD
How to approach :

First write down all the features, discuss the features with the interview thoroughly.(there are no obvious features, whatever is discussed design that only).
Start designing table/class schema, list down the tables which will be required with all the columns and how these are mapped. You should be able to defend your db design. your db should follow the DB normalisations forms. your db should be able to complete all the feature discussed in point 1.
Write down the APIs required, only the names like POST /user/signUp (name,,……) like this.
Be very clear with design and explain nicely
HLD
Once I was done with LLD the interviewer asked me to create HLD for the same.
Divide the services if possible, like user service is diff from cinemaService etc..
Use Kafka queues to connect the services together.
See Gaurav sen’s YouTube video that will also help

Tip 1 : be confident and practice all HR question beforehand

Tip 1 : be sure about the reasons of switching and prepare all type of questions