Easy Non Linear Recurrences
Practice
4 (43 votes)
Hard
Problem
31% Success 195 Attempts 50 Points 2s Time Limit 256MB Memory 1024 KB Max Code
You are given the following recurrences,
-
F(n) = a * F(n - 1) * G(n - 2) + b * G(n - 1) * F(n - 2) for n >= 2
-
G(n) = c * G(n - 1) * F(n - 2) + d * (3 ^ F(n - 1) ) for n >=2
-
H(n) = e * F(n) + f * G(n) for n >= 0
F[0] = F[1] = G[0] = 0
G[1] = 1
Input
First line contains the following 6 numbers in order : a, b, c, d, e, and f.
Next line contains Q, the number of queries. The following Q lines contain a single integer each: n
Output
For each query parameter n, output the sum H[0] + H[1] +......+ H[n] modulo 1,000,000,007 in a separate line.
Constraints
1 <= Q <= 100,000
All other input parameters lie in the range [0, 1,000,000,000]
Submissions
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