Best search algorithm to find condition within a range

Marko Rauhamaa marko at
Thu Apr 9 00:06:37 CEST 2015

BartC <bc at>:

> So the the number 3,012,345, in base 1000000, could represented in
> text form as the two 'digit':
>  (3, 12345)
> ie. 3*1000000 + 12345*1. In internal binary, each digit can just be
> stored in the normal form, probably as one digit per 32-bit integer.
> (I have a big integer library that works exactly this way, using a
> decimal representation, but using base 1000000 with digits 0 to
> 999999, rather than base 10 and digits 0 to 9.)

It is common to implement big integers in base-2**16, base-2**32 or
base-2**64. Arithmetics is performed just like in elementary school.


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