Parse Machine Codes to Typed Objects | Dataford Interview Questions

Write a parser that converts machine codes (e.g. 123) into corresponding typed objects via an enum (TYPE1, TYPE2, TYPE3...).

Asked in the phone screen stage. The main prompt was points-walled; only the clarifying example was visible.

Input and Output

Implement parse_machine_codes(codes). codes is a list of integers. Code 123 maps to TYPE1, 456 maps to TYPE2, and 789 maps to TYPE3. Unknown codes map to UNKNOWN. Return a list of objects represented as dictionaries with code and type fields, preserving input order.

Constraints

0 <= len(codes) <= 10^4
Every input element is an integer
Known codes are 123, 456, and 789
Unknown codes must be represented as UNKNOWN
Preserve duplicate codes and input order

Function Signature

def parse_machine_codes(codes):

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