Blind 75 Problems with Explanation
24 February 2026•2 min read
What Is the Blind 75?
The Blind 75 is a curated set of 75 LeetCode-style problems chosen to cover the most common patterns and topics in coding interviews.
Array and String Problems
Key patterns
- Two pointers and sliding window
- Prefix sums and hashing
- In-place transformations
Tree and Graph Problems
Must-know algorithms
- DFS and BFS traversals
- Binary tree properties and recursion
- Graph shortest path and connectivity
Dynamic Programming Section
Classic problems
- 1D and 2D DP
- Knapsack and LCS variants
How to Use This List
Solve in order, then revise by pattern. Track your progress with Preplume(/) and focus on explaining your approach out loud.