Documentation

First attempt at part a, not optimized.

Part a using high-level zip operations.

Part a using simple recursion (maybe smaller big-O?)

Part b first attempt, simple approach

Part b using highl-elevel zips

Utility to transform a list into tuples of adjacent values.

Sum all values of a three-tuple

A fold sum of the structure for parsed values.

Consolidate a list into a summed, shifting window.

Unsafe-ish Text traversal to transform into a list of Ints.