▲
×
Back To Explore Page



Loading...

Leaderboard
Showing:
Handle Score
@Ibrahim Nash 6420
@blackshadows 6376
@mb1973 5578
@Quandray 5231
@akhayrutdinov 5111
@saiujwal13083 4510
@sanjay05 3762
@kirtidee18 3673
@marius_valentin_dragoi 3522
@sushant_a 3459
@verma_ji 3412
Complete Leaderboard
Nth Even Fibonacci Number
Basic Accuracy: 20.84% Submissions: 918 Points: 1

Given a positive integer N, find the Nth Even Fibonacci number. Since the answer can be very large, return the answer modulo 1000000007.

Example 1:

Input: n = 1
Output: 2 
Explanation: 2 is the first even
number in the fibonacci series.

Example 2:

Input: n = 2
Output: 8
Explanation: 2 is the first even
number in the fibonacci series.


Your Task:  
You dont need to read input or print anything. Complete the function nthEvenFibonacci() which takes S as input parameter and returns the Nth even fibonacci number.

Expected Time Complexity: O(n)
Expected Auxiliary Space: O(n)

Constraints:
1<= n <=1000

to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

Nth Even Fibonacci Number

Output Window