DSA Sheet – Most Important Interview Questions (FAANG + Top Companies) | ExpertFunda

DSA Interview Preparation Sheet | ExpertFunda

DSA Interview Preparation Sheet

A structured roadmap for software engineers preparing for technical interviews at top product-based companies.

Objective

Build strong problem-solving skills, master core patterns, and confidently solve medium-to-hard interview problems within 30–45 days.

Overview

Problems Core Domains Difficulty
150+ Arrays, Trees, Graphs, Dynamic Programming, Greedy Easy → Hard

Execution Strategy

  • Allocate 2–3 hours of focused practice daily
  • Prioritize pattern recognition over brute-force solving
  • Revisit important problems (spaced repetition)
  • Write clean and optimized code

DSA Roadmap

Follow the sequence below for best results.

Arrays (Day 1–5)

Strings (Day 6–7)

Binary Search (Day 8)

Recursion & Backtracking (Day 9–10)

Linked List (Day 11–12)

Stack & Queue (Day 13–15)

Binary Trees (Day 16–19)

Binary Search Tree (Day 20–22)

Heaps (Day 23)

Tries (Day 24)

Graphs (Day 25–28)

Dynamic Programming (Day 29–32)

Greedy (Day 33)

Miscellaneous (Day 34)

Expected Outcomes

  • Solve medium-level problems confidently
  • Identify patterns quickly during interviews
  • Optimize solutions with proper complexity analysis
  • Write clean, interview-ready code

Consistency beats intensity. Show up daily and focus on depth.

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