foo.cc: In function 'int main()':
foo.cc:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d",&m,&n,&k);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
foo.cc:22:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d",&w[i],&v[i],&p[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

{"receive":"2020-07-27T05:42:35.589Z","handle":"2020-07-27T05:42:35.589Z","cache_start":"2020-07-27T05:42:35.594Z","read_cases":"2020-07-27T05:42:35.706Z","judge":"2020-07-27T05:42:35.709Z","done":"2020-07-27T05:42:36.904Z"}