foo.cc: In function 'LL ksm(LL, LL)':
foo.cc:57:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

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

{"receive":"2020-04-08T09:19:14.499Z","handle":"2020-04-08T09:19:14.499Z","cache_start":"2020-04-08T09:19:14.513Z","read_cases":"2020-04-08T09:19:15.047Z","judge":"2020-04-08T09:19:15.048Z","done":"2020-04-08T09:19:16.112Z"}