What DSA interviews test and how to practise
Comes up in: DSA
This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.
What it covers
- why companies test DSA (signal, not daily work)
- difficulty in frontend loops (mostly easy–medium, candidate reports)
- the UMPIRE-style method: understand, match a pattern, plan, implement, review, evaluate
- practising with spaced re-solves rather than grinding
Words you will know
What you will practise
- solve warm-up 1–3 with the method (worked)
Interview questions this answers
- Reverse a string without using
reverse(). - Check whether two strings are anagrams. What is the complexity?
- Find the missing number in an array of 1..n.
- You are stuck on a problem in an interview. What do you do?
- How do you test your solution before running it?
- How did you prepare for DSA interviews and how do you retain what you learned?