제출 #28905

실행 실패 (제출 코드 컴파일 에러)

Main.java:25: error: cannot find symbol
        Node top;
        ^
  symbol:   class Node
  location: class Stack
Main.java:26: error: cannot find symbol
        Node tail;
        ^
  symbol:   class Node
  location: class Stack
Main.java:5: error: cannot find symbol
        int K = unsignedReadNum();
                ^
  symbol:   method unsignedReadNum()
  location: class Main
Main.java:9: error: cannot find symbol
            int n = unsignedReadNum();
                    ^
  symbol:   method unsignedReadNum()
  location: class Main
Main.java:30: error: cannot find symbol
            Node node = new Node(i);
            ^
  symbol:   class Node
  location: class Stack
Main.java:30: error: cannot find symbol
            Node node = new Node(i);
                            ^
  symbol:   class Node
  location: class Stack
6 errors