adding elements of a vector to an unordered set
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06-07-2021 - |
Вопрос
Is there an easy way to add all the elements of a vector
to an unordered_set
? They are of the same type. Right now, I am using a for loop and was wondering if there is a better way to do it
Решение
If you're constructing the unordered_set then:
std::vector<int> v;
std::unordered_set<int> s(v.begin(), v.end());
Другие советы
Forgive me if my syntax has any minor bugs, but you can try the std::copy function, its meant for this purpose.
std::vector<int> v;
std::unordered_set<int> s;
std::copy(v.begin(),v.end(),std::inserter(s,s.end()));
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