* Compresia grafurilor
** Probleme: 'centrale':problema/centrale, 'substring-restrictions':https://csacademy.com/contest/archive/#task/substring-restrictions/ , 'field-activation':https://csacademy.com/contest/archive/#task/field-activation/ , 'legacy':http://codeforces.com/contest/786/problem/B
* Clica maxima

* 'Cactus graf':https://en.wikipedia.org/wiki/Cactus_graph

* 'Cactus graf':http://codeforces.com/blog/entry/10161#comment-156236

** Probleme: 'special-mvc':https://csacademy.com/contest/archive/#task/special-mvc/
* Gomory-Hu Tree
** Probleme: 'pumping-stations':http://codeforces.com/contest/343/problem/E