Source for a piece of Python code, between 20 to 50 lines (excluding comments), that performs/provides some meaningful task/output (e.g., a code that does binary search) from Internet. Provide this code in text format and a link to this source. Explain briefly what this piece of code does. (c) Propose, using at least 5 bullet points, on how the code sourced in 1(b) can be rewritten in a way that avoids Copying. (d) Using Python, rewrite the code sourced in 1(b) in a way that achieves the same outcome while avoiding copying. Provide the rewritten code and corresponding output in text format in the report.