Oz programming Try the version of Length as presented in lecture notes. Since X from the pattern is not used in the right-hand side of the case, it can be replaced with the universal operator (_ will not be bound to anything). Write other version, using the equality operator. Is there any more efficient way to implement Length?

Orginal version of length from power point :

fun {Length Xs}

case Xs

of nil then 0

[] X|Xr then 1 + {Length Xr}

end

end