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Module Sweep Line
Sweep Line
**Frequency: 3/10**
Resources
- [USACO: Sweepline](https://usaco.guide/plat/sweep-line?lang=cpp)
Problems
Intersections
5 / 19
1700
Radio
14 / 18
1800
Area
13 / 13
1900
Square
4 / 5
2000
Closest pair
11 / 14
2100
Triangle
4 / 5
2100
Paper cutting
2 / 4
2300
Data structure
Sweep Line
Introduction to Trie
Square root decomposition
Tree
Rerooting
Small-to-large
Heavy-light decomposition
Graph
Strongly connect component
Articulation point and bridge
Bipartite Matching
Dynamic Programming
Digit DP
Matrix multiplication
Hashing
Hash a set
Others
Divide and conquer
Geometry
Geometry
Binary search
Parallel binary search