/in/foo.cc: In function 'int get(std::__cxx11::string)':
/in/foo.cc:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<q.size();i++)
                 ~^~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:39:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(i=0;i<q.size();i++)
              ~^~~~~~~~~
/in/foo.cc:26:15: warning: unused variable 'k' [-Wunused-variable]
     int n,i,j,k,t,m,has=0,ji=0;
               ^