제출 #153213

실행 실패 (제출 코드 컴파일 에러)

Main.java:9: error: no suitable method found for sort(char[],(c1,c2)->c2 - c1)
    Collections.sort(input, (c1, c2) -> c2 - c1);
               ^
    method Collections.<T#1>sort(List<T#1>) is not applicable
      (cannot infer type-variable(s) T#1
        (actual and formal argument lists differ in length))
    method Collections.<T#2>sort(List<T#2>,Comparator<? super T#2>) is not applicable
      (cannot infer type-variable(s) T#2
        (argument mismatch; char[] cannot be converted to List<T#2>))
  where T#1,T#2 are type-variables:
    T#1 extends Comparable<? super T#1> declared in method <T#1>sort(List<T#1>)
    T#2 extends Object declared in method <T#2>sort(List<T#2>,Comparator<? super T#2>)
1 error