제출 #159453

실행 실패 (제출 코드 컴파일 에러)

Main.java:12: error: incompatible types: cannot infer type arguments for PriorityQueue<>
    PriorityQueue<Node> q = new PriorityQueue<>((n1, n2) -> n1.cost - n2.cost);
                                             ^
    reason: cannot infer type-variable(s) E
      (argument mismatch; bad return type in lambda expression
        possible lossy conversion from double to int)
  where E is a type-variable:
    E extends Object declared in class PriorityQueue
1 error