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POWFIB - Fibo and non fibo |
The problem is simple.
Find (a^b) % MOD
where,
a = Nth non-fibonacci number
b = (Nth fibonacci number) % MOD
MOD = 10^9+7
Consider fibonacci series as 1,1,2,3,....
Note: It is guaranteed that Nth non-fibonacci number will always be less than MOD value for every value of N used.
Input
First line contains T, the number of test cases.
Each next T lines contains a number N.
Output
Print T lines of output where each line corresponds to the required answer.
Announcement: Constraints are updated. Sorry for inconvenience occurred.
Example
Input: 3 3 2 1 Output: 49 6 4
Explanation
For N=3 : 3rd non fibo number = 7, 3rd fibo number = 2. ans = (7^2) %MOD = 49
For N=2 : 2nd non fibo number = 6, 2nd fibo number = 1. ans = (6^1) %MOD = 6
For N=1 : 1st non fibo number = 4, 1st fibo number = 1. ans = (4^1) %MOD = 4
For N=1 : 1st non fibo number = 4, 1st fibo number = 1. ans = (4^1) %MOD = 4
Constraints
1<=T<=100000
1<=N<=9*10^8
Note: Test cases have been updated and constraints are changed. Those who get TLE or WA are suggested to resubmit. GOOD LUCK there.
Added by: | ivar.raknahs |
Date: | 2015-07-15 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 JS-MONKEY |
Resource: | OWN |
hide comments
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2015-07-16 18:57:10 :?ToRpiDo
@ivar.raknahs : Can you plz check my submission, I think my algorithm is correct. :-( -reply-> your mod operation is incomplete. Good luck Last edit: 2015-07-18 16:30:28 |
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2015-07-15 19:20:03 Soma
@anyone : is a>0 or a>=0 ? --(ans)-- a>0 Last edit: 2015-07-15 19:20:46 |
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2015-07-15 18:49:15 Kata
@luckymastermin : This problem ask to calculate (non_fib ^ (fib % mod)) % mod, not (non_fib ^ fib) % mod |
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2015-07-15 18:27:36 [Lakshman]
@ivar.raknahs I think the entire INPUT file is wrong you check my code AC one and wrong answer. NOTE:: how come you are calculating non Fibonacci ^ Fibonacci on same mod which is 1000000007. here we need to apply Euler's theorem in order to solve this. But as I checked your input file based on mod 1000000007 only. -reply-> you need to calculate (a^ (b % mod ) ) % mod not (a^b)%mod and please read the note statement. I hope this helps. Last edit: 2015-07-16 05:23:57 |
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2015-07-15 18:05:00 Abhishek Guha
I am getting WA :( @mohib, can you check my code ? |
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2015-07-15 17:47:10 :.Mohib.:
Assuming n<=10^7 and t<=10^5. I got AC :) |
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2015-07-15 17:33:10 [Lakshman]
Please mention the upper and lower bound for n. Can you check my submission, I think my algorithm is correct. |
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2015-07-15 14:07:47 :.Mohib.:
What is the bounds for n and t?? -reply-> constraints updated Last edit: 2015-07-16 05:04:49 |