Important: The following is subject to change. Please visit this page frequently to get the most up-to-date information.
| B7510YEUNG-B7510, City University of Hong Kong |
| 3610LI-3610, City University of Hong Kong |
Pre-registration required to attend the training sessions. Walk-in is not allowed.
| Week Date |
AM Session 10:00 – 13:00 |
PM Session 14:00 – 17:00 |
|
|---|---|---|---|
| Level A | Level B | For all trainees | |
| Week 7 2026-02-14 |
G600
Introduction to HKOIorientation, competitive programming and Big-O |
G600Solutions to HKOI and HKGOI 2025/26 Final Event |
|
| Week 8 2026-02-21 |
B7510
Dynamic Programming (II)topological Sort, DP on trees/directed acyclic graphs, bitwise DP, rolling array Siu Lok Yin |
G600
Programming in C++useful C++ features & STL data structures, advanced C++ usage Wong Cheuk Kiu |
G600
Introduction to Linuxshell command and usage, file management, program development Chan King Kai |
| Week 9 2026-02-28 |
B7510
Graph (III)algorithms on tree: application on pre-order/post-order, lowest common ancestor, tree diameter Wai Ka Hei |
4307
Optimization and Common Tricksprefix sum, delta array, sliding windows(two pointers), precomputation, discretization, etc. Wong Cheuk Kiu |
4307
Constructive Algos, Special Tasks (I)constructive algorithms, machine building tasks, introduction to interactive tasks Hsieh Chong Ho |
| Week 10 2026-03-07 |
B7510
Data Structures (IV)revision on range query structures, lazy propagation, tries, persistent data structures, miscellanous tricks Wong Chun |
G600
Data Structures (II)binary heap, binary search tree, hash table, disjoint-set union-find Yuen Lok Kan Ethen |
G600Mini Competition (I) |
| Week 11 2026-03-14 |
B7510
Graph (IV)graph connectivity: dfs trees, cut edge, articulation point, bridge-connected component, strongly/weakly connected component, graph shrinking trick Wong Chun |
G600
Graph (I)basic concepts, graph representation, grid graph, depth first search, breadth first search, flood fill Wong Cheuk Kiu |
G600
Constructive Algos, Special Tasks (II)introduction to communication tasks / output-only tasks Yuen Lok Kan Ethen |
| Week 12 2026-03-21 |
B7510
Dynamic Programming (III)DP optimization tricks: partial sum / heap speed up, monotone queue, convex hull using geometric approach, divide and conquer DP Ko Kin Fung Nicholas |
G600
Dynamic Programming (I)discussion of classical DP problems: knapsack, matrix multiplication, etc. Chow King Wang |
G600Mini Competition (Teams) |
| Week 13 2026-03-28 |
4307EGOI Team Formation Test | ||
| Week 14 2026-04-04 |
No Training (BBQ) | ||
| Week 15 2026-04-11 |
3610
Graph (V)euler path, euler cycle, centroid decomposition, heavy-light decomposition Ko Kin Fung Nicholas |
4307
Mathematics in OI (I)computation and counting: greatest common divisor, modular arithmetic, fast exponential, prime numbers, combinations and permutations, inclusion/exclusion Hsieh Chong Ho |
4307
Game TheoryNim, Sprague-Grundy theorem and applications Wong Chun |
| Week 16 2026-04-18 |
3610
Flow and Graph Matching (I)maximum flow, minimum cut, set partition model, graph modeling techniques Yuen Lok Kan Ethen |
G600
Graph (II)shortest path algorithms for weighted graphs, minimum spanning tree Chow King Wang |
G600Mini Competition (II) |
| Week 17 2026-04-25 |
3610
Flow and Graph Matching (II)bipartite matching, hall’s marriage theorem, flows with demands, related problems Lu Yi Fung |
G600
Data Structures (III)segment tree, binary indexed tree, sparse table Wong Cheuk Kiu |
G600
Mathematics in OI (II)combinatorics: combinatorial thinking, sequences, bijection, sums and expected value Wong Chun |
| Week 18 2026-05-02 |
TBC
Misc Problem Discussionad-hoc, and using various skills to tackle interesting problems Yuen Lok Kan Ethen, Lu Yi Fung |
TBCMini Competition (III) | |
| Week 19 2026-05-09 |
TBCTBC | ||
| Week 20 2026-05-16 |
No Training | ||
| Week 21 2026-05-23 2026-05-24 |
TBCTeam Formation Test (2 days) |
||