/in/foo.cc: In function 'int getResult()':
/in/foo.cc:41:17: warning: variable 'n' set but not used [-Wunused-but-set-variable]
  int result = 0,n;
                 ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:73:67: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'std::__cxx11::basic_string<char>::size_type {aka long unsigned int}' [-Wformat=]
   printf("%lld %d %.1lf",str.size()*8,result,str.size()*8.0/result);
                                                                   ^