*** Preferabil ca a doua dimensiune sa fie un aib rar (alaturi de lista de elemente ordonate crescator)
** Probleme persistent: 'ants':http://varena.ro/problema/ants, 'kthvalue':problema/kthvalue, 'CF 786C':http://codeforces.com/problemset/problem/786/C
** Li Chao Segment Tree: '1':http://codeforces.com/blog/entry/44821?#comment-294049, '2':http://codeforces.com/blog/entry/51275?#comment-351413, '3':http://codeforces.com/blog/entry/51684?#comment-362081

*** Probleme: 'euro':problema/euro, 'Organizing a race':http://codeforces.com/contest/671/problem/E

*** Probleme: 'euro':problema/euro, 'Organizing a race':http://codeforces.com/contest/671/problem/E, 'cascaval':problema/cascaval

* 'Structuri de multimi disjuncte':http://algopedia.ro/wiki/index.php/Clasele_9-10_lec%C8%9Bia_5_-_15_oct_2014
** 'e-maxx':http://e-maxx.ru/algo/dsu
** 'Arhiva Educationala':problema/disjoint

** Numere pentagonale
*** Probleme: 'echival2':problema/echival2, 'crescator2':problema/crescator2
** 'Slope trick':http://codeforces.com/blog/entry/47821

*** Problema: 'ktown':problema/ktown

*** Problema: 'ktown':problema/ktown, 'cascaval':problema/cascaval

* Dinamici pe cifre
** Probleme: 'peluzanord':problema/peluzanord, 'simpla':problema/simpla, 'cifre':problema/cifre
* 'Dinamici pe permutari':http://s3-ap-northeast-1.amazonaws.com/data.cms.ioi-jp.org/open-2016/2016-open-skyscraper-sol-en.pdf