Given the A and R i,e first term and common ratio of a GP series. Find the Nth term of the series.
Note: As the answer can be rather large print its modulo 1000000007 (109 + 7).
Example 1:
Input: A = 2, R = 2, N = 4
Output: 16
Explanation: The GP series is
2, 4, 8, 16, 32,... in which 16
is th 4th term.
Example 2:
Input: A = 4, R = 3, N = 3
Output: 36
Explanation: The GP series is
4, 12, 36, 108,.. in which 36 is
the 3rd term.
Your Task:
You don't need to read or print anything. Your task is to complete the function Nth_term() which takes A, R and N as input parameter ans returns Nth term of the GP series modulo 109 + 7.
Expected Time Complexity: O(log2(N)) Expected Space Complexity: O(1)
Reset the IDE using the second button on the top right corner.
Avoid using static/global variables in your code as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases does not guarantee the correctness of code.
On submission, your code is tested against multiple test cases consisting of all
possible corner cases and stress constraints.
You can access the hints to get an idea about what is expected of you as well as
the final solution code.
You can view the solutions submitted by other users from the submission tab.
Here is some troubleshooting advice for contest problems
Make sure you are not using ad-blockers.
Disable browser extensions.
We recommend using latest version of your browser for best experience.
Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
POTD
POTD
