FLIB - Flibonakki

G(n) is defined as

G(n) = G(n-1) + f(4n-1) , for n > 0

and G(0) = 0

f(i) is ith Fibonacci number. Given n you need to evaluate G(n) modulo 1000000007.

Input

First line contains number of test cases t (t < 40000). Each of the next t lines contain an integer n (0 <= n < 2^51).

Output

For each test case print G(n) modulo 1000000007.

Example

Input:
2
2
4

Output:
15
714

Added by:Prof_Utonium_ಉಮೆಶ್
Date:2010-10-05
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64 JS-RHINO OBJC SQLITE
Resource:MNNIT IOPC 2010

hide comments
2023-03-07 11:50:57
After multiple optimisations, my 3*3 matrix passed. Don't overuse mod and don't use operator overloading or identity matrix creation in matrix exponentiation.
Finally AC in 10!!!!
2020-08-31 20:31:01
I assumed 1st fibonacci number to be 1 not 0 !!!
2017-09-11 14:33:45
Application of Matrix Exponentiation!!
AC in one GO!!
2017-06-23 19:41:31
3x3 works if you reduce the MOD operations and don't overload the * operation to multiply matrices (or create a separate function to do the same). Dirty Optimisations. xP

Last edit: 2017-06-23 19:43:52
2017-04-29 20:14:59 candide
G(n) depends on two consecutive Fibonacci numbers, so you only need to fast-power a 2x2 integer matrix (fast-power = square-and-multiply algorithm). In C, this can get AC in 0.02s without any trick (2017/05). To do a better result, perform precomputation (little tricky). Same advice in order to get AC in Python. Congrat to Francky for his Python performance!
2016-09-15 07:23:31
used 3x3 matrix with some precomputation, AC 0.10 s
2016-04-12 19:09:43 farhad chowdhury
can anyone plz share the idea how it can be solved with a 2*2 matrix.
i know with 3*3 matrix but tons of tle also did a lot optimization
2015-07-24 11:21:46 Tahsin
3*3 matrix passed , but without overloading * operator :/ with overloading i got TLE :| time limit is so strict !
2015-03-04 13:41:34 #include
2 WAs because of int in place of long long int
2015-03-03 16:00:16 ivar.raknahs
reduce as much mod operation as you can.
long long is good but too much mod operation can TLE.
AC .

Last edit: 2015-03-03 16:00:39
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