72 lines
2.2 KiB
Text
72 lines
2.2 KiB
Text
---
|
|
id: more-dfs
|
|
title: "More on DFS"
|
|
author: Benjamin Qi
|
|
prerequisites:
|
|
- Gold - Topological Sort
|
|
description: Includes 2-edge-connected components, strongly connected components, and biconnected components.
|
|
---
|
|
|
|
*Some problems sourced from [here](http://codeforces.com/blog/entry/54526?#comment-385354).*
|
|
|
|
- [CF DFS Tree + Bridges](https://codeforces.com/blog/entry/68138)
|
|
|
|
## 2-Edge Connected Components
|
|
|
|
[yosupo](https://judge.yosupo.jp/problem/two_edge_connected_components)
|
|
|
|
### Problems
|
|
|
|
- SRM 787 1000
|
|
|
|
## Strongly Connected Components
|
|
|
|
### Standard
|
|
|
|
- [CSES Planets & Kingdoms](https://cses.fi/problemset/task/1683)
|
|
- find SCCs
|
|
- [Giant Pizza](https://cses.fi/problemset/task/1684)
|
|
- 2SAT
|
|
|
|
### Tutorial
|
|
|
|
- Wikipedia
|
|
- [Tarjan](https://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm)
|
|
- [Kosaraju](https://en.wikipedia.org/wiki/Kosaraju%27s_algorithm)
|
|
- CPH (17, Strong Connectivity)
|
|
- [CPC.7](https://github.com/SuprDewd/T-414-AFLV/tree/master/07_graphs_1)
|
|
- [CF 2-SAT](http://codeforces.com/blog/entry/16205)
|
|
|
|
|
|
### Problems
|
|
|
|
- [Coin Collector](https://cses.fi/problemset/task/1686)
|
|
- DP on SCCs
|
|
- [USACO Old Gold: Grass](http://www.usaco.org/index.php?page=viewproblem2&cpid=516)
|
|
- [Proving Equivalences](https://open.kattis.com/problems/equivalences) [](78)
|
|
- [Festival](https://szkopul.edu.pl/problemset/problem/p9uJo01RR9ouMLLAYroFuQ-7/site/?key=statement) [](173)
|
|
|
|
## [Biconnected Components](https://en.wikipedia.org/wiki/Biconnected_component)
|
|
|
|
Related topics include
|
|
|
|
- Articulation Points
|
|
- Bridges
|
|
- Block-Cut Tree
|
|
|
|
(implementation)
|
|
|
|
### Tutorial
|
|
|
|
- [GeeksforGeeks](http://www.geeksforgeeks.org/articulation-points-or-cut-vertices-in-a-graph/)
|
|
|
|
### Problems
|
|
|
|
- [CSES Forbidden Cities](https://cses.fi/problemset/task/1705)
|
|
- compute block-cut tree
|
|
- [USACO Plat: Push a Box](http://www.usaco.org/index.php?page=viewproblem2&cpid=769)
|
|
- [Blockade](https://szkopul.edu.pl/problemset/problem/eDt8w290owtatmCjad0O0ywk/site/?key=statement)
|
|
- [POLICIJA](http://wcipeg.com/problem/coi06p2)
|
|
- [One-Way Streets](https://csacademy.com/contest/archive/task/one-way-streets/)
|
|
- [Investment](https://dmoj.ca/problem/tle17c1p6)
|
|
- CEOI problem?
|