CheckMainPuzzleSolution can be used to test that a main program generates the correct puzzle output.

MergeGapsBetweenLines takes a slice of lines (bricks) and shall merge lines together with the mortar, breaking upon a blank line.

ReadIntegersFromFile reads a file and attempts to parse each line as an integer, returning the resultant slice of integers.

ReadLinesFromFile reads the entire file specified, and returns a slice of strings.

SliceStringsToInts takes a slice of strings and attempts to convert to a slice of integers.