foo.c: In function 'main':
foo.c:9:10: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[(sizetype)(a)]' [-Wformat=]
  scanf("%s",&str);
         ~^  ~~~~
foo.c:7:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&a);
  ^~~~~~~~~~~~~~
foo.c:9:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",&str);
  ^~~~~~~~~~~~~~~~

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":"2020-07-22T08:06:40.477Z","handle":"2020-07-22T08:06:40.477Z","cache_start":"2020-07-22T08:06:40.484Z","read_cases":"2020-07-22T08:06:40.906Z","judge":"2020-07-22T08:06:40.907Z","done":"2020-07-22T08:06:41.064Z"}