foo.cc: In function 'int main()':
foo.cc:76:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld %lld",&a,&b,&c);
                                   ^
foo.cc:89:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld %lld",&a,&b,&c);
                                   ^

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

{"receive":"2020-04-02T07:24:16.372Z","handle":"2020-04-02T07:24:16.372Z","cache_start":"2020-04-02T07:24:16.378Z","read_cases":"2020-04-02T07:24:18.053Z","judge":"2020-04-02T07:24:18.053Z","done":"2020-04-02T07:24:18.663Z"}