Programming

Me on various sites

codeforces.comkostka
topcoder.comkostka
codechef.comkostka
codingame.comkostka
hackerrank.comkostka
hackerearth.comkostka
codeschool.comkostka

Hacking blog

I had a small blog about common mistakes in competitive programming. Take a look here or directly on Codeforces.

Some achievements

The other side

© Bartosz Kostka 2013-2017