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two-sum.js

Passed 3/3

function twoSum(nums, target) {
  const seen = new Map();

  for (let i = 0; i < nums.length; i++) {
    const complement = target - nums[i];
    if (seen.has(complement)) {
      return [seen.get(complement), i];
    }
    seen.set(nums[i], i);
  }
}

Runtime: 62ms · Memory: 41.2MB

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