> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > >>> def f(x, y): > ... return x + y > ... > >>> arr = range(10) > >>> sum(arr) # Our target > 45 > >>> tmp = [0] > >>> [f(x, y) for x in arr for y in [tmp[-1]] if tmp.append(f(x, > y)) or True][-1] > 45 > > Let's try some more... > > >>> def f(x, y): > ... return x*y > ... > >>> arr = range(1, 10) # Don't want to include 0! > >>> reduce(f, arr) # Our target > 362880 > >>> tmp = [1] > >>> [f(x, y) for x in arr for y in [tmp[-1]] if tmp.append(f(x, > y)) or True][-1] > 362880 > >>> print 'Magic!' > Magic!
LOL I feel like I've accidentally signed up for the perl-tutor list ;) _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
