Manchester | 25-SDC-Nov | Rahwa Haile | Sprint 2 | improve_with_precomputing#128
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Manchester | 25-SDC-Nov | Rahwa Haile | Sprint 2 | improve_with_precomputing
Learners, PR Template
Self checklist
Description
Improves the performance of two algorithms using precomputing strategies without modifying existing tests.
Changelist
Common Prefix:
Pre-sort strings once, then compare only adjacent pairs
Reduces comparisons from O(n²) to O(n log n) sort + O(n) comparisons
Count Letters:
Precompute lowercase letters into a set during the first pass
Replace repeated letter.lower() in s checks with O(1) set lookups
Reduces time complexity from O(n²) to O(n)
I really appreciate the time you take to review this PR