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perf: eliminate O(|E|) HashSet from CommunityDetector.detect() - #127
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sauravbhattacharya001 merged 1 commit intoMar 28, 2026
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sauravbhattacharya001 merged 1 commit into
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Replace the global countedEdges HashSet (which stored every edge during BFS to avoid double-counting) with a single post-BFS pass over graph.getEdges(). Since each edge belongs to exactly one connected component, we look up the community of one endpoint via the nodeToCommunity map and attribute the edge directly. Benefits: - Eliminates O(|E|) memory for the countedEdges HashSet - Removes per-edge HashSet.contains + HashSet.add during BFS inner loop - Separates BFS traversal from edge metric computation for clarity - Same algorithmic complexity (still O(V+E) overall)
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Replace global countedEdges HashSet with single post-BFS pass. Eliminates O(|E|) memory and per-edge hash lookups.