305-314. 16. Papadintitriou C (1991) Computational congilexity. Addison•Wesley. 17. Carmen T, Leiserson C. Rives' R. Stein C:1009) Introduction to Algarithiro. MU Press. 18. Valiant I.G (2009) Evolvability. J ACM 56: 3:1 3:21. 19. Maynard Smithi (1970) Natural selection and the concept rola protein %pace