Advanced

Some these topics have not appeared in Platinum and probably never will (ex. Matroid Intersection).
Others have appeared in Old Gold or Platinum very infrequently (ex. BCC, Suffix Array).

Modules Progress

0Completed
0In Progress
0Skipped
37Not Started
37 total

Problems Progress

0Completed
0In Progress
0Skipped
283Not Started
283 total

Data Structures

 0/28

Max Suffix Query with Insertions Only

Rare

A solution to USACO Gold - Springboards.

Wavelet Tree

Has Not Appeared

?

Counting Minimums with Segment Tree

Has Not Appeared

?

Segment Tree Beats

Rare

?

Persistent Data Structures

Rare

What if data structures could time travel?
Updated: 4 days ago

Treaps

Not Frequent

?

Convexity

 0/31

LineContainer

Rare

Convex Containers
Updated: Last month

Lagrangian Relaxation

Rare

aka Aliens Trick
Updated: Last month

Slope Trick

Rare

Slope trick refers to a way to manipulate piecewise linear convex functions. Includes a simple solution to USACO Landscaping.

Graphs

 0/65

Shortest Paths with Negative Edge Weights

Has Not Appeared

Returning to Bellman-Ford and Floyd-Warshall.
Updated: Last month

Eulerian Tours

Has Not Appeared

Visiting all edges of a graph exactly once.
Updated: Last month

BCCs and 2CCs

Rare


Updated: Last month

Strongly Connected Components

Rare

Subsets of nodes in directed graphs where each node in a subset can reach each other node in the subset.
Updated: 5 days ago

Offline Deletion

Has Not Appeared

Erasing from non-amortized insert-only data structures.
Updated: Last month

Euler's Formula

Rare

A formula for finding the number of faces in a planar graph.

Critical

Rare

CSES Critical Cities and Extensions

Link Cut Tree

Rare

?
Updated: Last month

Dynamic Programming

 0/20

DP on Trees - Combining Subtrees

Rare

?

Additional DP Optimizations and Techniques

Rare

Techniques and optimizations like Knuth's optimization.
Updated: Last month

Sum over Subsets DP

Has Not Appeared

Taking bitmask DP to the next level.

Flows

 0/28

Maximum Flow

Rare

Introduces maximum flow as well as flow with lower bounds.
Updated: Last month

Minimum Cut

Rare

?

Flow with Lower Bounds

Has Not Appeared

?
Updated: Last month

Minimum Cost Flow

Rare

Triangle Inequality, Johnson's Algorithm, and Min Cost Flow
Updated: Last month

Polynomials

 0/11

Introduction to Fast Fourier Transform

Has Not Appeared

Quickly multiplying polynomials
Updated: Last month

More Complex Operations Using FFT

Has Not Appeared

?
Updated: Last month

Strings

 0/53

String Searching

Rare

Knuth-Morris-Pratt and Z Algorithms (and a few more related topics).
Updated: Last month

Suffix Array

Rare

Quickly Sorting Suffixes of a String (and Applications)
Updated: Last month

String Suffix Structures

Has Not Appeared

Suffix Automata, Suffix Trees, and Palindromic Trees
Updated: Last month

Misc. Topics

 0/47

Extended Euclidean Algorithm

Rare

?
Updated: Last month

XOR Basis

Rare

?

Fracturing Search

Rare

A simple solution to "Robotic Cow Herd" that generalizes.

Game Theory

Has Not Appeared

?

Prefix Sums of Multiplicative Functions

Has Not Appeared

?

Matroid Intersection

Has Not Appeared

?

Interactive and Communication Problems

Rare

Some tips and tricks

Vectorization in C++

?
Updated: Last month