백준 15128 자바 - Congruent Numbers

// Congruent Numbers
package Bronze_IV_4;

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

public class Ex15128 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());

        double p1 = Double.parseDouble(st.nextToken());
        double q1 = Double.parseDouble(st.nextToken());
        double p2 = Double.parseDouble(st.nextToken());
        double q2 = Double.parseDouble(st.nextToken());

        if((p1 * p2) % (q1 * q2 * 2) == 0){
            System.out.println(1);
        }else {
            System.out.println(0);
        }
    }
}