Please explain solution to this problem-

Hi!

I used simple **Brute Force** to solve this problem. Here is my code.

### EXPLANATION:

Notice that **N** is just **8** in the worst case. This provides one a hint to try Brute Forcing. Basically, all I did was - for every bamboo, I decided to either :

- Not use it, or

2)Use it to form A, or - Use it to form B, or
- Use it to form C

I did this recursively and took the minimum cost of all possible combinations.

Feel free to ask if something is unclear.

Hope this helped

yeah got it!!.. thanks a lot.