I do not think there is an upper range of numbers and they are also not subsequent, so using an array like a hashset is not usefull in this particular situation
Yes. I was not sure of that constraint. In that case, set is better.
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I do not think there is an upper range of numbers and they are also not subsequent, so using an array like a hashset is not usefull in this particular situation
Yes. I was not sure of that constraint. In that case, set is better.