Life In 19x19

As always, thx for the round, Solomon!

B) I googled up a formula that had PI, E and lots of log10 in it, had no idea how it works, but apparently everyone else used the same here, so

D) I really enjoyed D. That's my level of math (shame or not). First I realized that in base 3 those sets consist ...

OGS limits my choice of opponent I think that is a fantastic feature. When creating the game invite you can specify the range of ranks you're willing to play and no one else can even click on your game. There is no need to put "6-8k ranked, no ?" and the likes into the game description that way ...

One thing to ponder could be OGS's default setting of no handicap. First it was strange but then the more I think about it the better choice it seems. It puts less emphasis on proper ranks (and given the inherent inaccuracy of ranking systems, that's a good thing).

KGS is still my "home". I've been ...

Either my Spotify playlist or some hands up techno mix on Youtube - those are long enough that I don't have to interrupt my game to find a new track.

Thanks for organizing the round!
Unfortunately this time I had next to no time / energy to program.

It is hard to get a game... (I've rather played on OGS lately - but there ranks are like random)
At least there are some bots to play on KGS.

Oh, I just saw this. Joined...

It's been another longer break for me with Go, so I haven't been playing games or following anything Go related until recently.

But now I learned that Alpha Go has beaten Ke Jie a few days ago. And then when I watched some Nick Sibicky videos he kept referring to Alpha Go style... I got the feeling ...

Thanks, Solomon, for arranging this round!

I regret not having much time this week. That overflow tricked me for quite some time in problem B. Then I wrote up a program to solve A - when I realized that I solved something completely different than what the problem was about . Then I couldn't think ...

Hm. This is the first time that I'm reasonably sure that my solution is correct, yet I get rejected with "wrong answer". I suspect that Problem B (Pachinko Probability) might be erroneous... (44% wrong answer can be a hint?)
⋅ Maybe there is a trick with the input? Maybe there are 500 ...

I think that getting good at these programming competitions is just a skill to be learned. I played around with Google code jam before, but never really got into competitive programming that much. I think it's a useful skill, because both speed of development and small perf optimizations matter ...

My non-recursive C# solution for Building Dependencies if anyone is interested:
using System;
using System.Collections.Generic;

namespace BuildDependency
{
public class Program
{
public Dictionary<string, List<string>> ReverseRules = new Dictionary<string, List<string>>&#40;&#41 ...

Yes. I myself was also considering withdrawing from these contests. But, "not today"!
The thing is, I have very limited free time. On the other hand though it really helps "unrusting" my brain!
(I finally managed to complete my iterative solution for Building Dependencies last night - I'll post it ...

Ah, and of course thx for arranging this round, Solomon!

What I did was I ported Solomon's Build Dependency solution to C# so that I better understand what's going on. I noticed two differences compared to what I tried: 1, I didn't map strings to indices and vice versa (I'm not sure if that's ...

This round has been a little bit bitter for me even though I got C for first try which was refreshing.
Maybe C# is at disadvantage after all?

The story of my solution for A:
First I implemented a naive recursive algorithm which hit memory limit &#40;strangely, because I didn't allocate anything in ...