Postby ET, the Extra Terrestrial » Tue Sep 18, 2012 12:13 am
All rightie, mates, try this un. I got it from a clever friend, who claimed that it could be solved by pre-school children in 5-10 minutes, by programmers in an hour, and by people with higher education in an insinuated much longer period of time. I got it in less than five minutes.
8809 = 6
7111 = 0
2712 = 0
6666 = 4
1111 = 0
3123 = 0
7662 = 2
9313 = 1
0000 = 4
2222 = 0
3333 = 0
5555 = 0
8193 = 3
8096 = 5
1012 = 1
7777 = 0
9999 = 4
7756 = 1
6855 = 3
9881 = 5
5531 = 0
2581 = ?????
"Mit der Dummheit kämpfen Götter selbst vergebens."
("Against stupidity, the gods themselves contend in vain.")
-- Friedrich Schiller (1759–1805)
Reality is that which, when you stop believing in it, doesn't go away.
-- Philip K Dick
What happens when all the renewable energy runs out?
-- Victoria Ayling
English isn't much of a language for swearing. When I studied Ancient Greek I was delighted to discover a single word - Rhaphanidosthai - which translates roughly as "Be thou thrust up the fundament with a radish for adultery."