foo.cc: In function 'int main()':
foo.cc:11:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("silker.in","r",stdin);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
foo.cc:12:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("silker.out","w",stdout);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
foo.cc:15:14: 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)

您没有提供题目配置文件。正在使用默认时空限制 1s 256M 。
识别到10个测试点
{"receive":"2020-07-22T08:08:27.445Z","handle":"2020-07-22T08:08:27.445Z","cache_start":"2020-07-22T08:08:27.451Z","read_cases":"2020-07-22T08:08:27.580Z","judge":"2020-07-22T08:08:27.581Z","done":"2020-07-22T08:08:28.775Z"}