백준5073: 삼각형과 세 변

문제

https://www.acmicpc.net/problem/5073

문제 풀이

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        while (true) {
            int[] arr = new int[3];
            arr[0] = sc.nextInt();
            arr[1] = sc.nextInt();
            arr[2] = sc.nextInt();

            if (arr[0] == 0 && arr[1] == 0 && arr[2] == 0) {
                break;
            }

            Arrays.sort(arr);

            if (arr[2] >= arr[0] + arr[1]) {
                System.out.println("Invalid");
            } else {
                if (arr[0] == arr[1] && arr[1] == arr[2]) {
                    System.out.println("Equilateral");
                } else if (arr[0] == arr[1] || arr[1] == arr[2] || arr[2] == arr[0]) {
                    System.out.println("Isosceles");
                } else {
                    System.out.println("Scalene");
                }
            }
        }
    }
}