foo.cc: In function 'int main()':
foo.cc:5:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~

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

正在同步测试数据，请稍后
{"receive":"2020-08-08T10:48:06.817Z","handle":"2020-08-08T10:48:06.817Z","cache_start":"2020-08-08T10:48:06.825Z","read_cases":"2020-08-08T10:48:07.225Z","judge":"2020-08-08T10:48:07.225Z","done":"2020-08-08T10:48:07.787Z"}