built

sub get_operand {
    my $arg = shift;
	
	my $listref = @$arg;

    if (UNIVERSAL::isa($listref, 'ARRAY')) {
        my $x = @$listref;
        print length($x).join(",",$x) . "\n"
        # WTF?
        }

built

#Play with dispatch ideas and guards in Python.
class Guard:

	dispatch_table = []

	@classmethod
	def register(cls, func, condition):
	
		cls.dispatch_table += [(func, condition)]

built

# One of several ways to do a ternary operation in Python
# For more discussion, see: http://drj11.wordpress.com/2007/05/25/iversons-convention-or-what-is-the-value-of-x-y/

# "AB"[True]  => A, likewise "AB"[False] => B
# In this way you can index any two item list with a test:

card_type = ["Low", "High"]][card_value < 10]

built

-module(change2).
-export([find_variations/2]).
-export([count_change/1]).

find_variations(0, _) -> 1;		% No amount given.
find_variations(_, []) -> 0;	% No coins given.
find_variations(Amount, _) 		% Amount is impossible.
	when Amount < 0 -> 0;

find_variations(Amount, [Coin|Rest]=Coins) ->