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kenmueller/competition-problem.js

Created May 30, 2019 17:37
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Competition problem used in a Microsoft interview in JavaScript
Raw
competition-problem.js
const duplicate = arr => {
const ordered = Array(arr.length).fill(false)
for (let i = 0; i < arr.length; i++) {
const element = arr[i]
if (ordered[element])
return element
ordered[element] = true
}
}
console.log(duplicate([1, 3, 3, 2, 4])) // Ran 0.08s
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