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Wednesday, February 07, 2007 |
Tech: Vista Upgrade Decision Flowchart
Labels: tech
Comments:
Thanks a lot for posting that Project Euler link yesterday. I have wasted hours on that thing and thanks to my complete lack of programming skills I am still a mediocre 6% genius (8 questions right). You might as well have given crack to an addict and then left behind some brochures informing them that they weren't even very good at getting high. Man, I suck.
# posted by 
: 2/08/2007 01:00:00 PM
: 2/08/2007 01:00:00 PM
Eh, I did problems 1,2,3,6,7,8,9,11 and 18. However, from here less and less of the problems are solvable using brute force and or math know how. I have my sights set on problem 37, and I have found 10 of the 11 truncatable primes (one of which is given in the answer), but I am having a lot of trouble finding the 11th (I am starting to think that it is a fantastically big number, which is very difficult to just look at. 8, 11 and 18 can be done just by carefully looking at the problem. 1,2, and 9 can be done fairly easily with a pen and paper (for 9, I would look at a list of common right angle pairs). For 6 I used a spread sheet, for 3 and 7 I found websites that helped. All in all, I am a mediocre 6% genius after hours of work and time wasted. I am quickly reaching the upper limit of possible questions unfortunately, while I think your programming background will allow you to lap me several times over.
# posted by : 2/09/2007 11:27:00 AM
: 2/09/2007 11:27:00 AM
The ever-cranky Dan Bernstein has a fast prime generator you can use for a lot of these problems. There are people out there who are purists, but I'm of the opinion that we all stand on the shoulders of giants; try doing these with pencil and paper.
Oh, I have no problem not being a purist. I looked lists of primes to figure out the 10000th prime, what am I supposed to do otherwise? Count? A lot of the problems are set up to be more or less impossible without a program though. For example, the problem that asks how many letters are in the numbers one to a million? Impossible.
# posted by : 2/10/2007 12:44:00 PM
: 2/10/2007 12:44:00 PMNewer› ‹Older
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