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UnsaidTalks
7‑Day Interview Sprint : Must‑Do DSA Problems
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Free
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3 participants
About Challenge

Think you know DSA? It’s time to prove it.

Welcome to a hands-on 7-day DSA interview sprint designed for aspiring software developers who want to strengthen their problem-solving skills, pattern recognition, and interview confidence.

This challenge focuses on must-do LeetCode problems that frequently appear in technical interviews at product-based companies.

What You’ll Tackle in This Challenge

  • Arrays & Strings
    Master sliding window, two pointers, prefix sums, and in-place optimizations
  • Dynamic Programming (DP)
    Learn how to identify DP problems, define states, transitions, and optimize recursive solutions
  • Graphs
    Apply BFS, DFS, topological sorting, and graph traversal patterns to real interview questions
  • Linked Lists & Intervals
    Strengthen pointer manipulation, cycle detection, interval merging, and heap usage
  • Trees & Heaps
    Solve recursion-heavy tree problems, understand traversal logic, and implement priority-based solutions

By the end of this challenge, you will be able to:

  • Recognize common DSA patterns instantly
  • Write clean, optimized solutions
  • Clearly explain your approach in interviews
  • Build consistency with daily problem-solving

8 Checkpoints

Welcome to Must‑Do DSA Problems: 7‑Day Interview Sprint

Unlocks immediately

Day 1 – Arrays

Unlocks after 1 day

Day 7 – Trees & Heaps
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