exactly the same solution as me, lol

I feel like a fool. Great work.

God damn it, so cool

Succinct. Kodos.

ok! lokki this code is officially the most awesome solution i have seen...cool.

I agree!!!
But I think using linq may degrade the performance for this solution. Solution without linq would be better. However you have used linq and reduced much lines of code, its more readable than using for, while loops, thums up for your approch :).

But you have to admit, that it looks way cooler using Linq than through usual iteration...