foo.cc: In function 'int main()':
foo.cc:26:3: error: 'memset' was not declared in this scope
   memset(dp, 103, sizeof(dp));
   ^~~~~~
foo.cc:26:3: note: suggested alternative: 'wmemset'
   memset(dp, 103, sizeof(dp));
   ^~~~~~
   wmemset

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