foo.cc: In function 'int main()':
foo.cc:21:17: warning: ignoring return value of 'int system(const char*)', declared with attribute warn_unused_result [-Wunused-result]
  system("pause");
                 ^

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

{"receive":"2020-04-08T07:31:05.206Z","handle":"2020-04-08T07:31:05.206Z","cache_start":"2020-04-08T07:31:05.250Z","read_cases":"2020-04-08T07:31:05.746Z","judge":"2020-04-08T07:31:05.746Z","done":"2020-04-08T07:31:06.559Z"}