** Reprezentanti in clase de echivalenta
*** Problemele: 'salaj':problema/salaj, 'Bracket Subsequences':http://codeforces.com/gym/100221, 'DSUBSEQ':http://www.spoj.com/problems/DSUBSEQ/
* 'Mobius Function':https://www.quora.com/profile/Surya-Kiran/Posts/A-Dance-with-Mobius-Function

** Probleme: 'porcjoc':problema/porcjoc

* Baze de numeratie
** Probleme: 'NumberOfPaths':problema/nop, 'copii2':problema/copii2, 'psychtraining':problema/psychtraining, 'zimeria':problema/zimeria, 'incantatii':problema/incantatii, 'sticle':problema/sticle
* Probabilitati

* Manacher
** Probleme: 'pscpld':problema/pscpld, 'numarare':problema/numarare, 'origami2':problema/origami2
* 'Aho-Corasick':problema/ahocorasick

** Probleme: 'rk':problema/rk, 'xormax':problema/xormax, 'CF 710 F':http://codeforces.com/contest/710/problem/F, 'KC':problema/kc, 'seti':problema/seti, 'cenzura':problema/cenzura

** Probleme: 'rk':problema/rk, 'xormax':problema/xormax, 'CF 710 F':http://codeforces.com/contest/710/problem/F, 'KC':problema/kc, 'seti':problema/seti

** 'smen pentru operatii de insert si erase':http://codeforces.com/blog/entry/10725?#comment-160742
* 'Rotatie lexicografica minima':http://www.infoarena.ro/rotatie-lexicografic-minima
** Probleme: 'password':problema/password