Tagged interview

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DSA Patterns

Work out which pattern a problem wants from its constraints, input shape, output shape and wording, then write it from a Java template short enough to memorise.

#dsa#patterns#algorithms#java#interview

Topics

The full checklist of data structures, algorithms and named patterns worth knowing, with what to know about each and which ones are already written up.

#dsa#topics#checklist#algorithms#data-structures#interview

Delivery framework for LLD

Five phases and a bonus round for taking a low level design from a blank page to working classes, with a tic-tac-toe example worked through end to end.

#lld#oop#design#interview

Java Collections

Cheat sheet for the Java collections framework plus strings and arrays, with the Big-O of every structure and a table for picking the right one.

#java#collections#data-structures#interview