제출 #118359

실행 실패 (제출 코드 컴파일 에러)

Main.java:65: error: switch expressions are not supported in -source 11
        return switch (i) {
               ^
  (use -source 14 or higher to enable switch expressions)
Main.java:66: error: switch rules are not supported in -source 11
            case 0 -> '+';
                   ^
  (use -source 14 or higher to enable switch rules)
2 errors