Question on my code.

[SouShadow]

I'm running into some issues with this code and not sure where to turn next to fix it. Can anyone help?

Here is my code:
http://pastebin.com/11fDGyw7

[QWERTYman]

What issues do you have?

[SouShadow]

More specifically it won't compile. I'm getting a few errors that read similar to this one:

error LNK2019: unresolved external symbol "public: double __thiscall TDP::CalCost(void)const " (?CalCost@TDP@@QBENXZ) referenced in function _main

Any idea on what I need to do?

[firedraco]

It means you haven't defined the function in your TDP class called CalCost(). Your overrode the one in the base but you didn't define it.

[SouShadow]

So what should I add to fix it and where?