This repository has been archived on 2022-06-22. You can view files and clone it, but cannot push or open issues or pull requests.
usaco-guide/content/4_Silver/BFS.mdx
Benjamin Qi 569b14ff01 freqs
2020-06-26 14:00:32 -04:00

47 lines
No EOL
1.5 KiB
Text

---
id: bfs
title: "Breadth First Search"
author: Benjamin Qi
prerequisites:
- Silver - Depth First Search
description: "Traversing a graph in a way such that vertices closer to the starting vertex are processed first."
frequency: 2
---
import { Problem } from "../models";
export const metadata = {
problems: {
sample: [
new Problem("CSES", "Message Route", "1667", "Easy", false, ["BFS"]),
],
general: [
new Problem("CSES", "Monsters", "1194", "Easy", false, ["BFS"]),
new Problem("Gold", "Cow Navigation", "695", "Easy", false, ["BFS"], "lots of casework"),
new Problem("CSA", "BFS-DFS", "bfs-dfs", "Normal", false, ["BFS", "DFS"]),
new Problem("Gold", "Lasers", "671", "Normal", false, ["BFS"]),
new Problem("Gold", "Dream", "575", "Hard", false, ["BFS"]),
],
}
};
<info-block title="Pro Tip">
No silver problem should require BFS rather than DFS, but it's still good to know at this level.
</info-block>
## Sample
<problems-list problems={metadata.problems.sample} />
## Tutorial
- CPH 12.2
- [PAPS 12.1](https://www.csc.kth.se/~jsannemo/slask/main.pdf)
- [CSAcademy BFS](https://csacademy.com/lesson/breadth_first_search)
- [cp-algo BFS](https://cp-algorithms.com/graph/breadth-first-search.html)
- [cp-algo 0/1 BFS](https://cp-algorithms.com/graph/01_bfs.html)
- [KhanAcademy BFS](https://www.khanacademy.org/computing/computer-science/algorithms/breadth-first-search/a/breadth-first-search-and-its-uses)
## Problems
<problems-list problems={metadata.problems.general} />