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  1. Lonely Integer
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Lonely Integer

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465 Discussions

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  • nelarakipaj
     + 0 comments

    Python 3 Solution Readable & Optimised

    def lonelyinteger(a): for i in a: if a.count(i)==1: return i

  • nandun5
     + 0 comments
        public static int lonelyinteger(List<int> a)
    {
        return a.GroupBy(i => i).Single(g => g.Count() == 1).Key;
    }

  • robertstanton95
     + 0 comments

    One liner:

    return [i for i in a if a.count(i) == 1][0]

  • cc2864
     + 0 comments

    counters: def lonelyinteger(a): times = Counter(a)

    q =[k for k in times if times[k]==1]
return q[0]

  • dcruz14
     + 0 comments

    I wanna recieve feedback about my Javascript solution, thxs!:

    function lonelyinteger(a) {
    // Write your code here
    a.sort((a, b) => a - b);
    let aux=0
    for(let i=0;i<a.length;i++){
        if(a[i]!=a[i+1]) aux=a[i]
        else i++
    }
    return aux;

}