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Hey, thanks. This was a fun problem. I got a little bit obsessed though, and I wonder if it might be possible to finish the problem on pencil and paper. I am su
by gajomi 13y ago
Hey, thanks. This was a fun problem. I got a little bit obsessed though, and I wonder if it might be possible to finish the problem on pencil and paper. I am sure I can finish an approximate version, but I am not sure I can get 12 digits. Did you try something like this?
P.S. I must apologize for abstractly referring to a solution approach as "this", but I didn't want to create a spoiler in case anyone else had felt inspired.
- dangoldin 13y agoI wasn't able to do it with pen and paper and suspect it's not possible. The 1000 flips and the 1 billion is arbitrary so it seems you'd always have to work with real numbers. I may be completely wrong though.
- dsil 13y agoThis thread is about solving them using pen and paper: http://forum.projecteuler.net/viewtopic.php?f=50&t=1982 http://forum.projecteuler.net/viewtopic.php?f=50&t=1982 I don't see this problem listed, but I didn't look through the whole thread.
- ipince 13y agoI actually don't know how to solve it programmatically without doing things that feel nasty. Solved it with pencil and paper, if "pencil and paper" includes asking Wolfram Alpha a few questions :)