요깨비's LAB

import java.util.ArrayList; import java.util.List; import java.util.Scanner; class Cow { int id; List preferences; public Cow(int id) { this.id = id; this.preferences = new ArrayList(); } } public class Main { public static int[] barns; public static boolean[] isProccesed; public static List cows; public static int N; public static int M; public static void main(String[] args) { Scanner scr = ne..