[알고리즘문제풀기] 옷가게 할인 받기

문제

내가 작성한 오답

class Solution {
    public int solution(int price) {
        int answer = 0;
        if(price>=500000) answer = (int)(price*0.8);
        else if(price>=300000) answer = (int)(price*0.9);
        else if(price>=100000) answer = (int)(price*0.95);
       
        return answer;
    }
}

내가 작성한 정답

class Solution {
    public int solution(int price) {
        int answer = price;
        if(price>=500000) answer = (int)(price*0.8);
        else if(price>=300000) answer = (int)(price*0.9);
        else if(price>=100000) answer = (int)(price*0.95);
       
        return answer;
    }
}

다른 사람들의 정답

class Solution {
    public int solution(int price) {
        int answer = 0;
        double ratio=((price>=500000)?(0.8):((price>=300000)?(0.9):((price>=100000)?(0.95):(1.0))));
        answer = (int)(price*ratio);
        return answer;
    }
}