set multiset

int main(int argc,char **argv) {
	vector<int> ive;
	for (auto i = 0; i != 10; ++i) {
		ive.push_back(i);
		ive.push_back(i);
	}
	set<int> iset(ive.cbegin(), ive.cend());
	multiset<int> imuls(ive.cbegin(), ive.cend());
	cout << iset.size() << endl << imuls.size() << endl;
}