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## Обсуждение задачи 1411. Рыцари 40 островов

WA42(1411) 40 Islands
Послано svr 18 янв 2007 11:31
Fine problem but unexpected WA42.
It may be bug of judj validator also
because of very many ways to build right net and therefore
using undirect verification of our answers.
My prog gives
1. n<3 or m<3-Imaginary
2. n=2*k+1 and m=2*l+1- Imaginary
3. n==3 and m<=7-Imaginary
4. n<=7 and m==3- Imaginary
5. Other cases: Regular and symmetric pictures
with obvious correctness
Soon I will use Inverse program 40 Islands -1419
Re: WA42(1411) 40 Islands
Послано svr 18 янв 2007 11:35
svr писал(a) 18 января 2007 11:31
Fine problem but unexpected WA42.
It may be bug of judj validator also
because of very many ways to build right net and therefore
using undirect verification of our answers.
My prog gives
1. n<3 or m<3-Imaginary
2. n=2*k+1 and m=2*l+1- Imaginary
3. n==3 and m<=7-Imaginary
4. n<=7 and m==3- Imaginary
5. Other cases: Regular and symmetric pictures
with obvious correctness
Soon I will use Inverse program 40 Islands -1419
Soon I will use Inverse program 40 Islands -1419(I have Ac)
as validator of my own
and my suspictions will be confirmed
Re: WA42(1411) 40 Islands
Послано svr 19 янв 2007 22:28
Have WA42 But MyAC 1419 Inverse Program
confirms all
answers in range n,m in [1..50]
Re: WA42(1411) 40 Islands
Послано svr 19 янв 2007 22:51
Eecuse me. Have ac Now Wa42=7*6. Was bug. And Ac 1419
said this but I talked wrong.
Re: WA42(1411) 40 Islands
Послано Jerry 18 авг 2007 07:46