Painting Fences
You are given ‘N’ fences. Your task is to find the total number of ways to paint fences using 2 colors only such that at most 2 adjacent fences are painted with the same color.
As the answer can be too large, return the answer modulo 10^9 + 7.
For Example:
Consider If N = 2, then there can be 4 different ways to color fences such that at most 2 adjacent fences have the same color-:
[ [0, 1],
[1, 0],
[1, 1],
[0, 0] ]
Hence, the answer is 4.
Input Format:
The first line contains a single integer ‘T’ representing the number of test cases.
The first line of each test case contains a single integer ‘N’, representing the number of fences.
Output Format:
For each test case, print a single integer denoting the number of ways to paint the fences modulo 10^9 + 7.
Print the output of each test case in a separate line.
Note:
You do not need to print anything. It has already been taken care of. Just implement the given function.
Constraints:
1 <= T <= 10
1 <= N <= 10^6
Time Limit: 1 sec
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