Graph Algorithms (S4)

Dijkstra and weighted shortest paths Minimum spanning trees Topological sort and DAGs Strongly connected components DSU applications and offline processing

Trees

Tree DP and rerooting LCA and binary lifting

Dynamic Programming

1D DP and state design The knapsack family Grid and interval DP DP on DAGs and shortest-path-as-DP DP over sequences and subsequences DP optimization (CHT, D&C, monotone)DP with geometry/counting states

Number Theory and Combinatorics

Modular exponentiation, inverses, sieves Binomial coefficients and counting mod p

Geometry II

Convex hull and orientation Sweep line and geometric counting

Data Structures II

BIT and segment trees

Dynamic Programming

DP on DAGs and shortest-path-as-DP

common

Work in progress

This module is still being written — the content here is a placeholder. This guide is open source, and contributions are welcome.

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Grid and interval DP

Grid and interval DP — anchored on 2016 S4 *Combining Riceballs*

DP over sequences and subsequences

DP over sequences and subsequences — anchored on 2023 S5 *The Filter* and 2020 S5 *Josh’s Double Bacon Deluxe*

On this page

DP on DAGs and shortest-path-as-DP