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
268Not Started
268 total

Data Structures

 0/20

Max Suffix Query with Insertions Only

Rare

A solution to USACO Gold - Springboards.
Updated: Last month

Wavelet Tree

Has Not Appeared

?
Updated: 3 weeks ago

Counting Minimums with Segment Tree

Has Not Appeared

?
Updated: 3 weeks ago

Segment Tree Beats

Rare

?
Updated: Last month

Persistent Data Structures

Rare

?
Updated: 4 days ago

Treaps

Not Frequent

?
Updated: Last month

Convexity

 0/31

LineContainer

Rare

Convex Containers
Updated: 4 days ago

Lagrangian Relaxation

Rare

aka Aliens Trick
Updated: 4 days ago

Slope Trick

Rare

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

Graphs

 0/63

Shortest Paths with Negative Edge Weights

Has Not Appeared

Returning to Bellman-Ford and Floyd-Warshall.
Updated: 4 days ago

Eulerian Tours

Has Not Appeared

Visiting all edges of a graph exactly once.
Updated: 4 days ago

BCCs and 2CCs

Rare


Updated: 4 days ago

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: 4 days ago

Offline Deletion

Has Not Appeared

Erasing from non-amortized insert-only data structures.
Updated: 4 days ago

Euler's Formula

Rare

A formula for finding the number of faces in a planar graph.
Updated: Last month

Critical

Rare

CSES Critical Cities and Extensions
Updated: Last month

Link Cut Tree

Rare

?
Updated: 4 days ago

Dynamic Programming

 0/19

DP on Trees - Combining Subtrees

Rare

?
Updated: Last month

Additional DP Optimizations and Techniques

Rare

Techniques and optimizations like Knuth's optimization.
Updated: 4 days ago

Sum over Subsets DP

Has Not Appeared

Taking bitmask DP to the next level.
Updated: Last month

Flows

 0/28

Maximum Flow

Rare

Introduces maximum flow as well as flow with lower bounds.
Updated: 4 days ago

Minimum Cut

Rare

?
Updated: Last month

Flow with Lower Bounds

Has Not Appeared

?
Updated: 4 days ago

Minimum Cost Flow

Rare

Triangle Inequality, Johnson's Algorithm, and Min Cost Flow
Updated: 4 days ago

Polynomials

 0/11

Introduction to Fast Fourier Transform

Has Not Appeared

Quickly multiplying polynomials
Updated: 4 days ago

More Complex Operations Using FFT

Has Not Appeared

?
Updated: 4 days ago

Strings

 0/52

String Searching

Rare

Knuth-Morris-Pratt and Z Algorithms (and a few more related topics).
Updated: 4 days ago

Suffix Array

Rare

Quickly Sorting Suffixes of a String (and Applications)
Updated: 4 days ago

String Suffix Structures

Has Not Appeared

Suffix Automata, Suffix Trees, and Palindromic Trees
Updated: 4 days ago

Misc. Topics

 0/44

Extended Euclidean Algorithm

Rare

?
Updated: 4 days ago

XOR Basis

Rare

?
Updated: Last month

Fracturing Search

Rare

A simple solution to "Robotic Cow Herd" that generalizes.
Updated: Last month

Game Theory

Has Not Appeared

?
Updated: Last month

Prefix Sums of Multiplicative Functions

Has Not Appeared

?

Matroid Intersection

Has Not Appeared

?

Interactive and Communication Problems

Rare

Some tips and tricks
Updated: Last month

Vectorization in C++

?
Updated: 4 days ago