Algorithmic accumulator that walks arrays right (reduceRight) while handling conditions without mutations to variables, no loops, and zero non deterministic code design patterns.
There are 2 datasources: input/Task_Data_1.csv and input/Task_Data_1.csv. Each data source has item_id that can be used to association between both sources.
You need to compile 2 files in one output file (csv). Resulting structure and rules of transformation:
