Question

How to copy a vector to unordered_set in C++

Answer 1

#include <iostream>
#include <vector>
#include <unordered_set>

void print(std::unordered_set<std::string> const &us) {
    for (auto const &n: us) {
        std::cout << n << " ";
    }
}

int main() {
    std::vector<std::string> vec = {"a", "bc", "def", "ghij", "klmnop"};
    std::unordered_set<std::string> us;
    
    for (auto e : vec) {
        us.insert(e);
    }
        
    print(us);
}



/*
run:

klmnop ghij def bc a 

*/

 

70+ SQL courses for beginners and professionals