In short
A short map of arrays, hashing, two pointers, and trees—plus how to explain complexity without freezing.
Who should read this
Students working on DSA at roughly a intermediate level—especially if you need something you can apply within a week.
What you’ll walk away with
A concrete checklist for DSA, plus the trade-offs that usually show up in interviews. Skim once, then practice the steps the same day.
Do this next
Block 10 minutes to practice one item from the article, then open a related course path or roadmap so the habit sticks.