[프로그래머스] 주식가격

https://programmers.co.kr/learn/courses/30/lessons/42584?language=java 

코딩테스트 연습 - 주식가격

[나의 답]

import java.util.*;
import java.util.stream.Collectors;

class Solution {
    public int[] solution(int[] prices) {
        int[] answer = new int[prices.length];
        List<Integer> priceList = Arrays.stream(prices)
                .boxed()
                .collect(Collectors.toList());
        for(int i = 0; i < prices.length-1; i++) {
            answer[i] = count(prices[i], priceList.subList(i+1, prices.length));
        }
        answer[priceList.size()-1] = 0;
        return answer;
    }
    
    public int count(int price, List<Integer> priceList) {
        int count = 0;
        for(int p : priceList) {
            if(price <= p) {
                count ++;
            }else{
                return ++count;
            }
        }
        return count;
    }
}