foo.cc: In function 'int main()':
foo.cc:4:6: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 scanf("%d %d %d %d\n%d",&a,&b,&c,&d,&e);
 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

{"receive":"2020-05-28T08:14:34.552Z","handle":"2020-05-28T08:14:34.552Z","cache_start":"2020-05-28T08:14:34.559Z","read_cases":"2020-05-28T08:14:35.955Z","judge":"2020-05-28T08:14:35.956Z","done":"2020-05-28T08:14:36.196Z"}