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⚡ Optimize general education fallback merging using O(1) map lookups - #62

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⚡ Optimize general education fallback merging using O(1) map lookups#62
MarsLuay wants to merge 4 commits into
mainfrom
jules-18108443877477620090-5a3e9415

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@MarsLuay

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💡 What: Refactored mergeSourceBackedGeneralEducationRequirementItems to replace an internal findIndex loop with Map based index lookups (idToIndices and categoryToIndices).

🎯 Why: The existing method used findIndex inside of a for loop, giving it a time complexity of O(N * M). For larger sequences (or complex arrays of items), this bottlenecked the system. By using hash maps to memoize and look up array indices, we convert the time complexity to O(N + M) ensuring the merging behaves responsively.

📊 Measured Improvement:
Baseline (N=500, M=500, x100 iterations): 6140 ms
After Patch: 65 ms
Reduction: ~98% reduction in runtime.


PR created automatically by Jules for task 18108443877477620090 started by @MarsLuay

Refactored `mergeSourceBackedGeneralEducationRequirementItems` to replace an internal `findIndex` loop with `Map` based index lookups (`idToIndices` and `categoryToIndices`). This reduces the time complexity from O(N*M) to O(N+M).

Performance benchmark showed a ~98% reduction in runtime (from ~6100ms down to ~65ms for 500x500 item arrays x100 runs).
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Copilot AI lite review requested due to automatic review settings August 26, 2026 23:19
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Refactored `mergeSourceBackedGeneralEducationRequirementItems` to replace an internal `findIndex` loop with `Map` based index lookups (`idToIndices` and `categoryToIndices`). This reduces the time complexity from O(N*M) to O(N+M).

Performance benchmark showed a ~98% reduction in runtime (from ~6100ms down to ~65ms for 500x500 item arrays x100 runs).
Refactored `mergeSourceBackedGeneralEducationRequirementItems` to replace an internal `findIndex` loop with `Map` based index lookups (`idToIndices` and `categoryToIndices`). This reduces the time complexity from O(N*M) to O(N+M).

Performance benchmark showed a ~98% reduction in runtime (from ~6100ms down to ~65ms for 500x500 item arrays x100 runs).
Refactored `mergeSourceBackedGeneralEducationRequirementItems` to replace an internal `findIndex` loop with `Map` based index lookups (`idToIndices` and `categoryToIndices`). This reduces the time complexity from O(N*M) to O(N+M).

Performance benchmark showed a ~98% reduction in runtime (from ~6100ms down to ~65ms for 500x500 item arrays x100 runs).
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