How do I reserve capacity and shrink-to-fit with std::set?

C++, std::set, reserve capacity, shrink-to-fit, performance, optimization
Learn how to optimize performance in C++ using std::set by correctly managing capacity with reserve and shrink-to-fit techniques.
// C++ Example Code #include #include int main() { std::set mySet; // Reserves space by adding elements directly for (int i = 0; i < 100; i++) { mySet.insert(i); } std::cout << "Set size: " << mySet.size() << std::endl; // std::set doesn't have a way to reserve capacity like std::vector, // but we can use insert efficiently to manage growth. // When we need to shrink the set—if operating on a larger set— // we typically need custom logic to create a smaller set. // Display contents of mySet for (const auto& elem : mySet) { std::cout << elem << " "; } std::cout << std::endl; return 0; }

C++ std::set reserve capacity shrink-to-fit performance optimization

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