[BOJ] 27736 찬반투표 (JAVA)

https://www.acmicpc.net/problem/27736

27736번: 찬반투표

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
	
    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    static StringTokenizer st;

    public static void main(String[] args) throws Exception {

        int N = Integer.parseInt(br.readLine());
        int[] input = new int[3];
        int cnt = 0;
        st = new StringTokenizer(br.readLine(), " ");
        for (int i = 0; i < N; i++) {
            input[Integer.parseInt(st.nextToken()) + 1]++;
            cnt++;
        }

        if ((cnt + 1) / 2 <= input[1]) System.out.println("INVALID");
        else if (input[0] < input[2]) System.out.println("APPROVED");
        else System.out.println("REJECTED");

    }
	
}