* Recurente si exponentiere rapida de matrici (+evaluare rapida a expresiilor folosind exponentiere in timp logaritmic)
* 'Principiul includerii si excluderii':principiul-includerii-si-excluderii
** problema 'cowfood':problema/cowfood

* 'Sisteme de ecuatii liniare':sisteme-de-ecuatii (Gauss)

* Sisteme de ecuatii liniare (Gauss)
**Teorie:
***'Gaussian elimination':http://en.wikipedia.org/wiki/Gaussian_elimination
***'Row echelon form':http://en.wikipedia.org/wiki/Row_echelon_form
**Probleme: 'SGU 275 To xor or not to xor':http://acm.sgu.ru/problem.php?contest=0&problem=275 '.campion Xor':http://campion.edu.ro/problems/3/323/xor_ro.htm 'SGU 260 Puzzle':http://acm.sgu.ru/problem.php?contest=0&problem=260 'UVA 10808':http://online-judge.uva.es/p/v108/10808.html 'UVA 326':http://online-judge.uva.es/p/v3/326.html 'UVA 10014':http://online-judge.uva.es/p/v100/10014.html 'BColor':problema/bcolor 'Laser':problema/laser 'TC XORing':http://www.topcoder.com/stat?c=problem_statement&pm=4829&rd=8095&rm=246636&cr=270505 'TC Escape the jail':http://www.topcoder.com/stat?c=problem_statement&pm=7353 'Register CEOI 2003':http://ceoi.inf.elte.hu/probarch/03/register-en.pdf 'Tunelul groazei':problema/tunel 'SGU 200':http://acm.sgu.ru/problem.php?contest=0&problem=200 'TC CoinGame':http://www.topcoder.com/stat?c=problem_statement&pm=6005

* Simplex (pur si simplu un hill climbing pe mai multe variabile)
* "Floyd's cycle finding":http://en.wikipedia.org/wiki/Cycle_detection
* Combinatorica