foo.cc: In function 'int hermione::main(int, char**)':
foo.cc:20:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

自豪的采用 HydroJudge 进行评测(github.com/hydro-dev/HydroJudge)

{"receive":"2020-08-07T15:00:19.776Z","handle":"2020-08-07T15:00:19.787Z","done":"2020-08-07T15:00:21.222Z"}