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]
Please login to use the editor
You need to be logged in to access the code editor
Loading...
Please wait while we load the editor
Results
Custom Input
Run your code to see the output
Submissions
Please login to view your submissions
Similar Problems
Points:30
97 votes
Tags:
Dynamic ProgrammingEasyOpenRecursion
Points:20
184 votes
Tags:
Breadth First SearchEasyGraphsOpen
Points:30
33 votes
Tags:
Dijkstra's algorithmEasyGraphsOpenShortest Path Algorithm
Editorial
Login to unlock the editorial