Status: IN
Some solutions use a `Solution` class with LeetCode method signatures (e.g., `countPairs`, `countGoodTriplets`) while others use bare module-level functions (e.g., `distinct_numbers`, `min_moves`, `count_hills_and_valleys`) — the repo has no single convention.
Source: entries/2026/06/06/count-equal-and-divisible-pairs-in-an-array-solution.md