[COS PRO 1급] 2-1 도서 대여점 운영 자바(Java)

문제링크

구름HOME

 

문제유형

프로그램 빈 칸 채우기 문제

 

문제

class Main {
    interface Book{
        public int getRentalPrice(int day);
    }
    
    class ComicBook _____ {
        _____ {
            int cost = 500;
            day -= 2;
            if(day > 0)
                cost += _____;
            return cost;
        }
    }
    
    class Novel _____ {
       _____ {
            int cost = 1000;
            day -= 3;
            if(day > 0)
                cost += _____;
            return cost;
        }
    }

    public int solution(String[] bookTypes, int day) {
        Book[] books = new Book[50];
        int length = bookTypes.length;
        for(int i = 0; i < length; ++i){
            if(bookTypes[i].equals("comic"))
                books[i] = new ComicBook();
            else if(bookTypes[i].equals("novel"))
                books[i] = new Novel();   
        }
        int totalPrice = 0;
        for(int i = 0; i < length; ++i)
            totalPrice += books[i].getRentalPrice(day);
        return totalPrice;
    }

 

문제 풀이

class Main {
    interface Book{
        public int getRentalPrice(int day);
    }
    
    class ComicBook implements Book {
        public int getRentalPrice(int day){
            int cost = 500;
            day -= 2;
            if(day > 0)
                cost += 400;
            return cost;
        }
    }
    
    class Novel implements Book {
        public int getRentalPrice(int day){
            int cost = 1000;
            day -= 3;
            if(day > 0)
                cost += 300;
            return cost;
        }
    }

    public int solution(String[] bookTypes, int day) {
        Book[] books = new Book[50];
        int length = bookTypes.length;
        for(int i = 0; i < length; ++i){
            if(bookTypes[i].equals("comic"))
                books[i] = new ComicBook();
            else if(bookTypes[i].equals("novel"))
                books[i] = new Novel();   
        }
        int totalPrice = 0;
        for(int i = 0; i < length; ++i)
            totalPrice += books[i].getRentalPrice(day);
        return totalPrice;
    }