제출 #158883

실행 실패 (제출 코드 컴파일 에러)

Main.java:28: error: cannot find symbol
    while (!q.isEmpty()) {
            ^
  symbol:   variable q
  location: class Main
Main.java:29: error: cannot find symbol
      Node cur = q.poll();
                 ^
  symbol:   variable q
  location: class Main
Main.java:40: error: cannot find symbol
      from = f; to = t; cost = c;
             ^
  symbol:   variable f
  location: class Node
Main.java:40: error: cannot find symbol
      from = f; to = t; cost = c;
                     ^
  symbol:   variable t
  location: class Node
Main.java:40: error: cannot find symbol
      from = f; to = t; cost = c;
                               ^
  symbol:   variable c
  location: class Node
5 errors