newbiemaster123's blog

By newbiemaster123, history, 17 months ago, In English

Hi all, I wanted to know if there are high rated (1900+) CP programmers here or those you know of who are pursuing a PhD in CS or related fields? What is your research on? Has CP helped you in your research? I know that there are many areas in CS theory which share commonalities with CP but I would like to know more. Please share your thoughts.

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17 months ago, # |
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17 months ago, # |
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I am Russian PhD student studying (you guessed it)... CodeForces. Actually I am not Russian, but I am Eastern European (and have the hair to prove it).

CP helped me a bit with my PhD, but most of the stuff I am doing is far too advanced for these silly problems to be of any use.

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17 months ago, # |
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17 months ago, # |
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Hi! I have recently defended my PhD thesis. My work is on discrete geometry.

For example, here is a joint work with my friends. I used C++ to try some configurations and find a right-equidistant sequence in $$$\mathbb{R}^3_{\infty}$$$, and then generalized the construction.

Or here is another problem related to the generalized kissing number -- that is, if the kissing number of a space is the maximal number of unit balls that can touch another unit ball while having zero-volume intersection, here we call these balls the first layer, then we add other balls that touch the first-level balls and call them the second level, and so on. The question is, what is the maximum number of balls if all of them are on first $$$k$$$ levels. I considered the problem on the plane, so if $$$k = 1$$$ then it is just the kissing number, that is, $$$6$$$; if $$$k = 2$$$ it is known to be $$$18$$$, and I proved that for $$$k = 3$$$ the answer is $$$36$$$. The optimality of hexagonal picture doesn't hold in general, though; there is another paper (in russian), I may upload it on arXiv as well in near future.

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17 months ago, # |
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I am PhD of physics (Just received the degree last year), and my field is computational condensed matter.