biggest number handled by c++ ?

[catalin10]

Haha, I myself laugh right now realizing what I did. :)

[catalin10]

Why does viliml, in his example, subtract 48 from a[i]?

[Athar]

That's just code obfuscation, he should have subtracted '0'.
This is where the 48 comes from: http://www.asciitable.com/

[JLBorges]

It is worse than just obfuscation; code that makes such assumptions is not portable.