foo.cc: In function 'int main()':
foo.cc:32:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
foo.cc:34:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
                      ^
foo.cc:37:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d",&x,&y,&z);
                           ^

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

{"receive":"2020-03-22T06:17:07.691Z","handle":"2020-03-22T06:17:07.691Z","cache_start":"2020-03-22T06:17:07.698Z","read_cases":"2020-03-22T06:17:09.694Z","judge":"2020-03-22T06:17:09.696Z","done":"2020-03-22T06:17:11.608Z"}