In 2nd sample of BFF problem..your solution will seem like this when you
form circle...
1
3 4
2
Now, condition was that...each member must be adjecent to its BFF...here in
this case, 3 violets the condition, as it is neither BFF of 1 nor or
4...that's why it is not valid answer..
On Sat, Apr 16, 2016 at 9:43 AM, Anon82910 <kakuei...@gmail.com> wrote:
> I don't get how the BFF circle is supposed to be made.
>
> The sample case shows that the solution for:
> 7 8 10 10 9 2 9 6 3 3
> is this sitting configuration:
> 7 9 3 10 4 1
> Even though there is no BFF relationship between 1 and 4, the circle is
> correct because 1's BFF is 7.
> The BFF relationship can be represented as: 10<-3<-9<-7<-1 && 10<-4
> I assume that it works this way because the circle can be completed if at
> least one of the neighbor is the kid's BFF.
>
> But why is the max number of kids for this sample problem = 3?:
> 3 3 4 1
> This configuration should be possible to solve the problem:
> 3 1 4 2
> Same representation as previous example: 3<-1<-4 && 3<-2
>
> Can't seem to figure out what I did wrong..
>
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