Problem 2672. Largest Geometric Series

Extension of Ned Gulley's wonderful Problem 317.
In a geometric series, ratio of adjacent elements is always a constant value. For example, [2 6 18 54] is a geometric series with a constant adjacent-element ratio of 3.
A vector will be given. Find the largest geometric series that can be formed from the vector.
Example:
input = [2 4 8 16 1000 2000];
output = [2 4 8 16];
Update - Test case added on 21/8/22
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Solution Stats

10.81% Correct | 89.19% Incorrect
Last Solution submitted on Jan 07, 2026

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