45 lines
No EOL
1.9 KiB
Text
45 lines
No EOL
1.9 KiB
Text
---
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id: hld
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title: "Heavy-Light Decomposition"
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author: Benjamin Qi
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prerequisites:
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- Gold - Euler Tour Technique
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- Platinum - Range Update Range Query
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description: Path and subtree updates and queries.
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frequency: 1
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---
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import { Problem } from "../models";
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export const metadata = {
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problems: {
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sample: [
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new Problem("CSES", "Company Queries II", "1688", "Intro", false, ["LCA"], ""),
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new Problem("YS","Vertex Set Path Composite","vertex_set_path_composite", "Easy", false, ["HLD"], ""),
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],
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general: [
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new Problem("Gold", "Cow Land", "921", "Easy", false, ["Euler-Tree","PURS", "HLD"], ""),
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new Problem("Plat", "Disrupt", "842", "Easy", false, ["HLD"], ""),
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new Problem("Old Gold", "Grass Planting", "102", "Easy", false, ["HLD"], ""),
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new Problem("HR", "Subtrees & Paths", "https://www.hackerrank.com/challenges/subtrees-and-paths", "Easy", false, ["HLD"], ""),
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new Problem("CF", "Tree Queries", "contest/1254/problem/D", "Normal", false, ["HLD"], ""),
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new Problem("ojuz", "JOI - Cats or Dogs", "https://oj.uz/problem/view/JOI18_catdog", "Hard", false, ["HLD"], ""),
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new Problem("wcipeg", "COI 08-Otoci", "https://wcipeg.com/problem/coi08p2", "Hard", false, ["HLD"], "editorial available online"),
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],
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}
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};
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<problems-list problems={metadata.problems.sample} />
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## Tutorial
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<resources>
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<resource source="cp-algo" title="HLD" url="https://cp-algorithms.com/graph/hld.html" starred> </resource>
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<resource source="CF" title="AI-Cash - HLD Implementation" url="blog/entry/22072" starred></resource>
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<resource source="CF" title="adamant - Easiest HLD with subtree queries" url="blog/entry/53170" starred></resource>
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<resource source="anudeep2011" title="HLD" url="https://blog.anudeep2011.com/heavy-light-decomposition/">explains what HLD is (but incomplete & overly complicated code)</resource>
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</resources>
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## Problems
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<problems-list problems={metadata.problems.general} /> |