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Master the Blind 75Data Structures & Algorithms

Level up your coding interview skills with the famous curated list of 75 essential problems that cover core patterns and concepts. From arrays to dynamic programming, master the fundamentals that top tech companies look for.

250+ developers mastered these problems

solution.js
function twoSum(nums, target) {
  const map = new Map();
  
  for (let i = 0; i < nums.length; i++) {
    const complement = target - nums[i];
    
    if (map.has(complement)) {
      return [map.get(complement), i];
    }
    
    map.set(nums[i], i);
  }
  
  return [];
}

DSA Questions (21)

Questions by Difficulty

What is Blind 75?

The Blind 75 is a curated list of 75 algorithm questions compiled by an engineer at Facebook. These problems are considered essential for acing technical interviews at top tech companies.

How to use

  • Create an account to track your progress
  • Start with the easier problems in each category
  • Aim to solve at least 2-3 problems per day
  • Review your solutions regularly

Top Companies

Questions frequently asked at these leading tech companies

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