foo.cc: In function 'int main()':
foo.cc:41:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d",&x);
                  ^
foo.cc:45:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d",&x,&y);
                       ^
foo.cc:50:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d",&x,&y);
                       ^

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

{"receive":"2020-04-28T06:21:50.638Z","handle":"2020-04-28T06:21:50.638Z","cache_start":"2020-04-28T06:21:50.646Z","read_cases":"2020-04-28T06:21:52.275Z","judge":"2020-04-28T06:21:52.276Z","done":"2020-04-28T06:21:53.267Z"}