/in/foo.cc: In function 'int Count(std::__cxx11::string, int)':
/in/foo.cc:14:21: warning: array subscript has type 'char' [-Wchar-subscripts]
         Hash[current]++;
                     ^
/in/foo.cc:16:25: warning: array subscript has type 'char' [-Wchar-subscripts]
         if (Hash[current] == 1) {
                         ^
/in/foo.cc:22:22: warning: array subscript has type 'char' [-Wchar-subscripts]
             Hash[left]--;
                      ^
/in/foo.cc:23:26: warning: array subscript has type 'char' [-Wchar-subscripts]
             if (Hash[left] == 0) {
                          ^