foo.cc: In function 'int main()':
foo.cc:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lf%d",&a,&b);
   ~~~~~^~~~~~~~~~~~~~~
foo.cc:25:15: warning: array subscript is above array bounds [-Warray-bounds]
  cout<<f[10000]<<endl;
               ^

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

{"receive":"2020-07-25T01:02:18.268Z","handle":"2020-07-25T01:02:18.268Z","cache_start":"2020-07-25T01:02:18.274Z","read_cases":"2020-07-25T01:02:18.395Z","judge":"2020-07-25T01:02:18.396Z","done":"2020-07-25T01:02:18.790Z"}