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std:: set - C++ Users
Sets are containers that store unique elements following a specific order. In a set, the value of an element also identifies it (the value is itself the key, of type T), and each value must be unique.The value of the elements in a set cannot be modified once in the container (the elements are always const), but they can be inserted or removed from the container.
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std::set - cppreference.com
std::set is an associative container that contains a sorted set of unique objects of type Key.Sorting is done using the key comparison function Compare.Search, removal, and insertion operations have logarithmic complexity. Sets are usually implemented as Red–black trees. ...
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Set in C++ STL - GeeksforGeeks
Explanation: In the above program, we create a set with name s values {3, 5, 2, 1}.Syntax The set container is defined as std::set class template inside <set> header file.set <T, comp> s; where, T: Data type of elements in the set. s: Name assigned to the set. comp: It is a binary predicate function that tells set how to compare two elements.
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set
The elements are sorted according to the comparison object.If more than one equivalent element is passed to the constructor, only the first one is preserved. Parameters comp Binary predicate that, taking two values of the same type of those contained in the set, returns true if the first argument goes before the second argument in the strict weak ordering it defines, and false otherwise.