Question

How to use unordered set in C++

Answer 1

#include <iostream>
#include <unordered_set>
  
void printSet(std::unordered_set<int> st) {
    for (auto n: st) {
        std::cout << n << ' ' ; 
    } 
}
  

int main()
{
	std::unordered_set<int> st { 5, 2, 9, 7, 1, 3 };

	printSet(st);

	return 0;
}
     
     
     
/*
run:
     
3 1 7 9 2 5 
  
*/

 

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