Status: IN
The solution space is largely covered by three strategy families — single-pass streaming for accumulation and counting, sort-then-scan for pair and ordering problems, and closed-form mathematical reduction for structurally reducible problems — though not every solution maps neatly to exactly one category.
Closed-form reduction is the third paradigm that completes the two-paradigm taxonomy
Depends on (SL): two-paradigms-cover-solution-space, mathematical-insight-replaces-brute-computation