docs/03-guides/03-prefix-sum.mdx

---
title: 'Prefix Sum'
description: 'Precomputed cumulative state for O(1) range queries.'
---

:::warning[Under construction]
This page is a scaffold. Notes, canonical problems, and template code are not written yet.
:::

## Study deck

Drill the essentials — click the deck, then use the arrow keys.

<StudyDeck deck="prefix-sum" />
docs(docs): add strategy, coding, and system design documentation hierarchy 2026-08-14 18:37:13 -04:00			`---`
			`title: 'Prefix Sum'`
			`description: 'Precomputed cumulative state for O(1) range queries.'`
			`---`

			`:::warning[Under construction]`
			`This page is a scaffold. Notes, canonical problems, and template code are not written yet.`
			`:::`
docs(docs): add study decks, new reference pages, and fix header image path 2026-08-19 13:05:47 -04:00
			`## Study deck`

			`Drill the essentials — click the deck, then use the arrow keys.`

			`<StudyDeck deck="prefix-sum" />`