12024 - Hats

[Najmuzzaman]

Have any tricky
I think it is a normal Number theory.

But i get WA

[robot]

Hi Naj..
This problem actually based on Dearagement theorem...so u have to little study in this topics..
I think u know , the number of n things are arrange in n! if the n things are not arrange in their own position what have you done? .....
ASU(SUST)

[amin__]

need some i/o...can anyone help me???

[Mehadi]

try this I/O. generating output by my Acc code.
Input :

Code: Select all

3
11
12
6

Output :

Code: Select all

14684570/39916800
176214841/479001600
265/720

Hope this will help you.

[naseef_07cuet]

Can you please explain the De arrangement theorem....please

[anis_cuet016]

Hi...

I hope this will help .....

http://www.askiitians.com/iit-jee-algeb ... eorem.aspx