foo.cc: In function 'int main()':
foo.cc:43:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
foo.cc:45:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",mp[i]+1);
         ~~~~~^~~~~~~~~~~~~~

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":"2020-07-16T08:34:20.045Z","handle":"2020-07-16T08:34:20.045Z","cache_start":"2020-07-16T08:34:20.053Z","read_cases":"2020-07-16T08:34:20.556Z","judge":"2020-07-16T08:34:20.557Z","done":"2020-07-16T08:34:21.019Z"}