ZA | 25-SDC-July | Luke Manyamazi | Sprint 1 | JavaScript and Python Exercises

[Luke-Manyamazi]

Learners, PR Template

Self checklist

• I have titled my PR with Region | Cohort | FirstName LastName | Sprint | Assignment Title
• My changes meet the requirements of the task
• I have tested my changes
• My changes follow the style guide

Changelist

• calculateSumAndProduct (JS): Optimized from two sequential O(N) loops to a single O(N) loop, reducing array traversals by 50%.
• findCommonItems (JS): Reduced time complexity from O(N * M) to O(N + M) by using a Set for O(1) average-time lookups.
• has_pair_with_sum (Python): Reduced time complexity from O(N^2) to O(N) by using a hash set to track complements.
• remove_duplicates (Python): Reduced time complexity from O(N^2) to O(N) by using a hash set to track seen items while preserving order.

Questions

1. Readability vs. Conciseness (JS findCommonItems): I provided both a detailed, multi-line refactor and a concise one-line version for findCommonItems using the Set object. Which style is preferred for functions of this nature in our codebase?