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%d%d",&n,&m,&s[0],&t[0],&f[0]);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d%d%d",&s[i],&t[i],&a[i],&b[i],&f[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

{"receive":"2020-08-10T03:16:13.068Z","handle":"2020-08-10T03:16:13.068Z","cache_start":"2020-08-10T03:16:13.077Z","read_cases":"2020-08-10T03:16:13.185Z","judge":"2020-08-10T03:16:13.188Z","done":"2020-08-10T03:16:14.735Z"}