Eroare de compilare: Main.java:1: error: package javafx.util does not exist import javafx.util.Pair; ^ Main.java:38: error: cannot find symbol Queue<Pair<Integer, Integer>> queue = new LinkedList<>(); ^ symbol: class Pair location: class Main Main.java:40: error: cannot find symbol queue.add(new Pair<Integer, Integer>(P_x, P_y)); ^ symbol: class Pair location: class Main Main.java:43: error: cannot find symbol Pair<Integer, Integer> s = queue.poll(); ^ symbol: class Pair location: class Main Main.java:51: error: cannot find symbol queue.add(new Pair<Integer, Integer>(new_x, new_y)); ^ symbol: class Pair location: class Main 5 errors