Interview Preparation

DSA Problem Solving Roadmap

18 weeks · 18 topics · 150 LeetCode problems · pattern-first preparation

150
Problems
18
Topics
30/100/20
Easy / Medium / Hard
18
Weeks

Use this weekly rhythm while moving through the roadmap. Keep the same process every week: learn pattern → solve → review → repeat failed problems.

Rule: Do not rush problem count. A solved problem means you can explain the idea, code it again later, and discuss complexity without looking.

Search or filter the complete problem list. Links open directly on LeetCode.

This is the execution method. Follow it more strictly than the topic order.

Final month strategy: practice random mixed problems, record yourself explaining solutions, and simulate the interview environment. The real skill is not only solving — it is solving while communicating clearly.