foo.cc: In function 'int main()':
foo.cc:31:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
     ~~~~~^~~~~~~~~~~
foo.cc:33:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&a[i].d);
         ~~~~~^~~~~~~~~~~~~~~~
foo.cc:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&a[i].w);
         ~~~~~^~~~~~~~~~~~~~~~

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

{"receive":"2020-06-24T17:05:39.953Z","handle":"2020-06-24T17:05:39.953Z","cache_start":"2020-06-24T17:05:39.960Z","read_cases":"2020-06-24T17:05:40.071Z","judge":"2020-06-24T17:05:40.072Z","done":"2020-06-24T17:05:40.900Z"}