[JAVA | 프로그래머스] 주식가격

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

프로그래머스

 

문제

초 단위로 기록된 주식가격이 담긴 배열 prices가 매개변수로 주어질 때, 가격이 떨어지지 않은 기간은 몇 초인지를 return 하도록 solution 함수를 완성하세요.

 

제출 답안

class Solution {
    public int[] solution(int[] prices) {
        int[] answer = new int[prices.length];
        for (int i=0; i<prices.length; i++){
            int cnt = 0;
            for (int j=1; j<prices.length-i; j++){
                if (prices[i]>prices[i+j]){
                    cnt++;
                    break;
                }
                cnt++;
            }
            answer[i] = cnt;
        }
        return answer;
    }
}

 

개선 답안

class Solution {
    public int[] solution(int[] prices) {
        int len = prices.length;
        int[] answer = new int[len];
        int i, j;
        for (i = 0; i < len; i++) {
            for (j = i + 1; j < len; j++) {
                answer[i]++;
                if (prices[i] > prices[j])
                    break;
            }
        }
        return answer;
    }
}

 

참고 자료

https://school.programmers.co.kr/learn/courses/30/lessons/42584/solution_groups?language=java&type=all 

프로그래머스