Warm-ups (J1–J2)

The First 30 Marks Practice Problems

Data Structures, Simulation and Ad-hoc (J2–J4)

Lists and maps Simulation Intro to Geometry Ad-hoc insight problems

Strings (J3)

Strings: parsing, transforms, palindromes

Sorting and Greedy (J4)

Sorting and ordering Greedy with sorting

Counting and Casework

Counting and careful casework

Graphs and Search (J5)

Graph representation and traversal Flood fill and multi-source BFS Complete search and recursion

Prefix Sums and Intro DP (J5)

Prefix sums and difference arrays Introduction to dynamic programming Weighted grids and shortest paths

Graphs and Search (J5)

Flood fill and multi-source BFS

frequent

Work in progress

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

Contribute on GitHub — help write this module by opening a pull request.

Graph representation and traversal

Graph representation and traversal — anchored on 2018 J5 *Choose your own path*

Complete search and recursion

Complete search and recursion — anchored on 2022 J5 *Square Pool* and 2019 J5 *Rule of Three*

On this page

Flood fill and multi-source BFS