From the monthly archives:

mai 2010

Ce sugereaza cutia ?

by dumitru on 31 mai 2010 · 4 comments

Care hexagon ?

by dumitru on 18 mai 2010 · 17 comments

Grafuri

by dragos on 6 mai 2010 · 6 comments

Problema cu 2 si 3

by dumitru on 3 mai 2010 · 22 comments

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