Pergunta de entrevista da empresa AppsFlyer: a function that receives array of Integers A and returns array of integers that repeats themselves

AppsFlyer

a function that receives array of Integers A and returns array of integers that repeats themselves

Sigiloso

18 de mai. de 2019

Set s = new HashSet(); For (a in A) If ! a in s Add(a) Else ans.add(a) //doubled value

Sigiloso

15 de out. de 2019

function findRepeats (arr){ return arr.filter((item, index) => arr.indexOf(item) < index); }