foo.cc: In function 'int main()':
foo.cc:12:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
foo.cc:15:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&a[i]);
                          ^

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

{"receive":"2020-03-24T01:44:08.526Z","handle":"2020-03-24T01:44:08.526Z","cache_start":"2020-03-24T01:44:08.533Z","read_cases":"2020-03-24T01:44:09.274Z","judge":"2020-03-24T01:44:09.276Z","done":"2020-03-24T01:44:10.303Z"}