This problem can be solved by pre-school children in 5-10 minutes,
by programmers in an hour and by people with higher education…
well, check it yourself!
peterg70
February 16th, 2013, 05:04
Interesting puzzle.
I have worked out its addition by substitution
i.e. 0 = 1, 1 = 0, 2 = 0, 3 = 0, 4 = ?, 5 = 0, 6 = 1, 7 = 0, 8 = 2, 9 = 1
dion
February 16th, 2013, 06:58
the answer is ....
2
bilbo
February 18th, 2013, 07:41
well, I would never solved it, but Google as usual is my friend...
This is kind of neat. I posted this from a discussion about creative thinking, how we need to discard old patterns and pre-conceived notions. Something I'm sure everyone realizes is at times useful to reversing. From the posts so far I see at least 3 different strategies to how you solved it (including google), and one I never considered. Here's the article:
http://codejury.com/what-genius-really-means/
I suspect there may even be "harder" and more complex ways to solve this. Captcha? Pattern recognition?