Hello Daniel, Thursday, February 20, 2003, 6:49:45 PM, you wrote: DC> Bulat is suggesting that we introduce the methods Array#uniqc and DC> Array#to_hash. DC> I agree with him. He does have a point that his algorithm was better, and DC> my program was only faster because it was in C. I'll come back to this DC> this afternoon to see if I can write those to methods. thanks! i'm too lazy to program, especially in C. ruby lacks some array<=>hash functions and may be existence of concrete realizations can help in including these facilities in future ruby versions -- Best regards, Bulat mailto:bulatz / integ.ru