---
title: 'Nodal Linear'
description: 'O(1) splice, no random access. Everything is pointer surgery.'
sidebar:
  order: 1
  label: Introduction
---

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

## Patterns

- [Linked List](/guides/coding/nodal-linear/linked-list) — Fast/slow runners, reversal, and dummy-head splicing cover it all.

**Systems anchor:** LRU cache = hashmap + doubly-linked list, the one hybrid that appears constantly.