[programmers] 코딩테스트 입문 Day 5

1. 옷가게 할인받기

class Solution {
    public int solution(int price) {
        int answer = 0;
        
        if( price >= 100000 && price < 300000){
            answer = (int) (price - (price * 0.05));
        } else if( price >= 300000 && price < 500000){
            answer = (int) (price - (price * 0.1));
        } else if(price >= 500000){
            answer = (int) (price - (price * 0.2));
        } else {
            answer = price;
        }
        
        return answer;
    }
}

2. 아이스 아메리카노

class Solution {
    public int[] solution(int money) {
        
        int[] result = new int[2];
        
        result[0] = money / 5500;
        result[1] = money % 5500;
        
        return result;
    }
}

3. 나이 출력

class Solution {
    public int solution(int age) {
        return (2022 - age) + 1;
    }
}

4. 배열 뒤집기

class Solution {
    public int[] solution(int[] num_list) {
        int[] answer = new int[num_list.length];
        
        for(int i=0; i<num_list.length; i++){
            answer[i] = num_list[num_list.length - 1 - i];
        }
        
        return answer;
    }
}