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Module Small-to-large
Small-to-large
**Frequency: 5/10** This technique enables merging data structures really fast.
Resources
- [USACO: Small-To-Large merging](https://usaco.guide/plat/merging?lang=cpp)
Problems
Distinct colors
83 / 93
1400
Picking apples
63 / 80
1700
Frequent color
44 / 61
1800
Path with length k 2
30 / 32
1800
LIS on tree
19 / 28
1900
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