foo.cc: In function 'int main()':
foo.cc:7:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
foo.cc:10:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
      scanf("%d",&s[i]);
      ~~~~~^~~~~~~~~~~~

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

{"receive":"2020-07-10T11:37:00.116Z","handle":"2020-07-10T11:37:00.116Z","cache_start":"2020-07-10T11:37:00.124Z","read_cases":"2020-07-10T11:37:00.246Z","judge":"2020-07-10T11:37:00.248Z","done":"2020-07-10T11:37:01.458Z"}