foo.cc: In function 'int main()':
foo.cc:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&t);
     ~~~~~^~~~~~~~~~~
foo.cc:28:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld",&m,&n);
         ~~~~~^~~~~~~~~~~~~~~~~~

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

{"receive":"2020-06-26T03:51:33.690Z","handle":"2020-06-26T03:51:33.696Z","cache_start":"2020-06-26T03:51:33.787Z","read_cases":"2020-06-26T03:51:34.056Z","judge":"2020-06-26T03:51:34.074Z","done":"2020-06-26T03:51:35.154Z"}