2026-08-14 18:37:13 -04:00
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---
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title: 'Prefix Sum'
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description: 'Precomputed cumulative state for O(1) range queries.'
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---
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:::warning[Under construction]
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This page is a scaffold. Notes, canonical problems, and template code are not written yet.
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:::
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2026-08-19 13:05:47 -04:00
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