Anyone know the solution

[Anton]

On Monday, October 27, 2014 5:33:17 PM UTC-7, alex23 wrote:
> On 28/10/2014 1:10 AM, em.. at gmail.com wrote:
> > Write a	program	that reads the contents	of the two files into two separate lists.		The user should	be able	to enter a boy's name, a girl's	name or	both, and the	application will display messages indicating whether the names were among the most popular.
> 
> This is actually a trick question. This is a classic unsolvable problem 
> in computer science, known as the Dual Baskets problem. It is 
> NP-complete, meaning that there is no easy solution. It requires 
> brute-forcing and can take an indefinite period of time to complete, if 
> at all.
> 
> The correct answer is "Not possible".

Can you elaborate why it is an NP-complete problem or maybe a link to description of problem you are referring to?

Thanks.