The contest has started! You can register and submit your solutions at www.worlddesigncenter.com/contest/ If you want to buy some antique reproduction...
Lars, could you check why my entry for N=10 shows wrong best value. It calculates it correctly when I submit, but do not update the best values with it....
Can you try to submit it again. I think I tracked down the bug. If it still doesn't work, email me the case, so I can figure out what's going on. -Lars...
no, you were right. When I fixed the last bug, I broke that. I clearly have no understanding of the way php's strpos function works. I think it should be...
Sorry to spring this on you guys after the start, but I guess I didn't really do all my homework, and part A is pretty well researched, and there are lots of...
... The short introduction of the problems still says that for part A we should maximize the value of the determinant. Maybe the "divided by..." part should be...
Two questions: 1) part A: what happens if I submit a matrix with only 0s ? Will I get an infinite score, or a divide by zero ? 2) In the rules, it is written: ...
1) You'll get a 0 2) Please only submit matrices you've found using on your own. I think that because of the sparsity condition, the winners will end up doing...
As I see now in the part B: Tim MacDonald 0.0097 0 2005-02-28 14:38:28 So, Tim MacDonald has 0 submissions, which is probably wrong....
olexiy_oryeshko
olexiy_oryeshko@...
Mar 1, 2005 7:22 am
15
... Right, and in the past few hours I've lost a full point in part B, and the only submissions in that time were the 03/01 submissions neither of whom have...
see the bottom of the problem page. You start with a 1 for part b, since its trivial to achieve that. Submissions only shows submissions that improve your...
While using matrices you find online or elsewhere is not allowed, there is a fair amount of literature pertaining to the problem, which provides some good...
... Not download someone else's code ? So , using linear algebra algorithm libraries is forbidden ? __________________________________ Celebrate Yahoo!'s 10th...
You can use standard libaries that are included with standard distributions of whatever language you are using. Other than that though, you should write your...
about the code,i can't understand why you say don't use other ppl code if you want only solution and not code to it. (the ideea is that its lame to CTRL+C...
pseudosphinx
pseudosphinx@...
Mar 3, 2005 4:50 pm
26
I think the point in the rule really boils down to good sportsmanship. It's true that it is impossible to tell if a solution was copied (either the solution ...
I think that posting already found results won't change the final contest results. For example, how can you check if a matrix is already known ? BTW, it could...
I know it's a little bit too early, but I would like to know how fast you can compute determinants for part A of the contest. Of course, you don't have to...
To do a total of 100 calcs of det on 59x59 array, all 0's: .0100 seconds To do a total of 100 calcs of det on 59x59 array, all1's: .1101 seconds. There is a...
Yes, nobody can't find if your solutions comes from other's code. But you will have much more fun using the same set of rules as your opponents do. Obviously,...
I also have 2.4 Ghz pentium For 100 all 1's its 0.09 seconds For 100 all 0's also 0.09 seconds This a not very meaningful because the algorithm spots matrices...
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