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How to check if specific value exist in unordered set using C++

1 Answer

0 votes
#include <iostream>  
#include <unordered_set>

using std::unordered_set;
using std::cout;
using std::endl;


void print(const unordered_set<int>& usset)
{
	for (const auto& element : usset) {
		cout << element << " ";
	}
	std::cout << std::endl;
}

int main()
{
	unordered_set<int> usset = { 11, 4, 30, 21, 99 };

	print(usset);

	if (usset.find(30) != usset.end()) 
		cout << "30 exist" << endl;
	else
		cout << "30 not exist" << endl;

	return 0;
}

/*
run:

99 11 4 30 21
30 exist

*/

 




answered Jan 13 by avibootz
edited Jan 15 by avibootz
...