usaco-guide/content/5_Gold/Tree_Euler.md

id: tree-euler title: "Euler Tour on Tree" author: ? prerequisites: - Silver - Depth First Search - Gold - Static Range Queries description: Subtree updates and queries and another way to compute lowest common ancestors.

• CSES: Subtree Queries

Tutorial

• CPH 18.2
• cp-algorithms - LCA with Sparse Table

Problems

• CSES: Path Queries
• USACO
  • Gold - Milk Visits
  • Plat - Promotion Counting
  • Plat - Snow-Cow