[백준] - #2839: 설탕 배달

문제 출처 : https://www.acmicpc.net/

 

---

#2839: 설탕 배달 (언어 : Java11)

---

제출 답안

import java.util.*;
class Main{
    public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int w = sc.nextInt();
		
		if(w==4 || w==7) {
			System.out.println(-1);
		}
		else if(w%5==0) {
			System.out.println(w/5);
		}
		else if(w%5==3 || w%5==1) {
			System.out.println((w/5)+1);
		}
		else if(w%5==4 || w%5==2) {
			System.out.println((w/5)+2);
		}
	}
}

---

comment

- 뻥 안 치고 정확히 스무번 도전함...