general cleanup; change operators in Binary 2 from "programmer notation"
further cleanup (manipulate with numbers rather than arrays)
further cleanup
created binary answer type
don't accept empty input in binary answer type
Binary X -> Binary operations X; add basic binary operations on single bits
some refactoring
spaces to tabs in Binary operations 2
rewrite Decimal to binary to Sal's method
minor Decimal to binary hint change
rewrite Binary to decimal
unexpand Binary operations 1
fix hints in Binary operations 1
more obvious hints in Binary operations 2
add Binary operation 3 (expression evaluation) - no hints yet
hints in Binary operations 3
fix missed variable rename
scrape 2's complement (makes sense only with binary numbers with given width)
typo
fix typo in Binary operations 2