https://programmers.co.kr/learn/courses/30/lessons/42584

vector<int> solution(vector<int> prices) {
	vector<int> answer(prices.size());

	for (int i = 0; i < prices.size() - 1; i++)
	{
		for (int j = i + 1; j < prices.size(); j++)
		{
			if (prices[i] <= prices[j])
			{
				answer[i]++;
			}
			else
			{
				answer[i]++;
				break;
			}
		}
	}

	return answer;
}