Keeping numbers as big as 100^100

[Sajjad Heydari]

Hi there!
I need to keep 2 numbers as big as 100^100 and well i have to do sth like this:

First number -(or +) second .

Could you help me on it? Thanks!

[hamsterman]

Try http://gmplib.org/

[ne555]

double, but you lose precision.

[Sajjad Heydari]

Got wrong answer with double

Any other idea?

[ne555]

Of course you will get WA if you needed precision
If you "don't want" to use an extern library, then code your own bignum class. There was a thread in the Lounge about that.

[Sajjad Heydari]

I can use standard libraries only , may i have the link?:-/

[ne555]

*sigh*, you are too lazy.
Read this http://www.acmsolver.org/books/Programming_Challenges_Miguel_Skiena.pdf