Merge Catalogs - codepath/compsci_guides GitHub Wiki

Unit 2 Session 1 (Click for link to problem statements)

U-nderstand

Understand what the interviewer is asking for by using test cases and questions about the problem.

• Does the order I add the dicts matter?
  • Yes, because if there is a duplicate element, the second catalog gets priority.

P-lan

Plan the solution with appropriate visualizations and pseudocode.

General Idea: Loop through each item in catalog 2, and add/overwrite the entry in catalog 1.

1) For each product and price in catalog 2:
  a) Set that product -> that price in catalog 1
2) Return the updated catalog 1

I-mplement

def merge_catalogs(catalog1, catalog2):
    for product, price in catalog2.items():
        catalog1[product] = price
    return catalog1