What you have presented is an array of hash REFERENCES, in what looks like a very convoluted and inefficient structure.

If you are having trouble expressing an algorithm or identifying a reasonable data structure, and are able to describe the original problem, perhaps we can be of assistance. Your question as posed seems too abstract (diverged from reality) and twisted to provide a coherent answer.

Alternatively, post some (minimal) functioning code with data, and include the results of running that, and compare that with your expected results.

P.S. Welcome to the monastery!.