foo.cc: In function 'int main()':
foo.cc:14:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
foo.cc:23:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&m,&k);
         ~~~~~^~~~~~~~~~~~~~

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

{"receive":"2020-07-24T05:49:27.591Z","handle":"2020-07-24T05:49:27.591Z","cache_start":"2020-07-24T05:49:27.597Z","read_cases":"2020-07-24T05:49:27.739Z","judge":"2020-07-24T05:49:27.742Z","done":"2020-07-24T05:49:28.330Z"}