hdu 5667 Sequence(矩陣快速冪)
Now there are many foods,but he does not want to eat all of them at once,so he find a sequence.
fn=⎧⎩⎨⎪⎪1,ab,abfcn−1fn−2,n=1n=2otherwise
He gives you 5 numbers n,a,b,c,p,and he will eat fn foods.But there are only p foods,so you should tell him fn mod p.
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