Fixed #14 by removing hash set that's no longer neede.
Fixed #14 by removing hash set that's no longer neede.

tbabej/hstr,dvorka/hstr,jlec/hstr,dragon788/hstr,dragon788/hstr,dvorka/hstr,jlec/hstr,dvorka/hstr,tbabej/hstr,dvorka/hstr,dvorka/hstr