https://programmers.co.kr/learn/courses/30/lessons/12982

int solution(vector<int> d, int budget) {
	int answer = 0;
	sort(d.begin(), d.end());
	for (int i = 0; i < d.size(); i++)
	{
		if (budget >= d[i])
		{
			budget -= d[i];
			answer++;
		}

	}
	return answer;
}