How do I merge two containers efficiently with std::set for large datasets?

Merging two containers efficiently using `std::set` in C++ can be essential for handling large datasets. The `std::set` is a part of the C++ Standard Library, allowing you to store unique elements following a specific order. To merge two sets, you can use the `insert` function or create a new set that combines both containers. Here's how you can do it:

#include #include int main() { std::set set1 = {1, 2, 3, 4, 5}; std::set set2 = {4, 5, 6, 7, 8}; // Merging set2 into set1 set1.insert(set2.begin(), set2.end()); // Displaying merged set for (const int& elem : set1) { std::cout << elem << " "; } return 0; }

C++ std::set merging sets large datasets container operations

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