Ok, thread title is a bit misleading, I haven't actually done the genesis block calculation part done. I'd like to also take a minute or two and explain to you that I aren't exactly a good coder, I started doing C in my early days of mining in 2011 and playing with cgminer and nonces and stuff. I refused to read a book on C, so everything I've learned about C is through trial&error, well OK I have not learned much so trial&error is how I get my results. The equivalent of this would be trying to drive a car as if you have 10 years behind the wheel without actually knowing how to.

So basically do not expect the best code, I could have done things in there that aren't efficient, or just plain simply wrong and that would be because I don't know how to do them in a different way.

The code is here http://pastebin.com/nhuuV7y9, pure C. No binaries for obvious reasons. The code relies on OpenSSL. Since you will need OpenSSL either way, as it is a Bitcoin dependency, I believe it won't be an issue.
*Implemented Genesis Block finder

Cons

• Program assumes one input and one output. So trying to create a merkle hash like the one in Freicoin with multiple inputs and outputs is not possible with this program.
• Program at the moment assumes 50 coins, but this can be changed in the code very easily.
• This is probably the most important one. I can re-create the Bitcoin merkle hash with ease, but when I tried to test it with Litecoin's timestamp message, it failed. Something to do with Unicode. I will not lie, my understanding of Unicode and ASCII is even less than my understanding of C. Basically, try to avoid apostrophes,commas and other special characters. Someone more knowledgeable can patch this

Usage

Example
Which will output

The timestamp needs to be in quotes if it's longer than a word, because it will get treated as separate arguments than a whole string.

So yeah, more cons than pros, but if you like what I've done, please drop some reward to the address on my signature