Training Materials (2026)

Level A

Week 7 (14 Feb 2026)

Competitive Programming, Big-O

Level B

Week 7 (14 Feb 2026)

N/A

PM Sessions

Week 7 (14 Feb 2026)

Solution to HKOI 2025/26 –

• S261 Tribal Occupation
• S262 Even the Rhythm
• S263 Set
• S264 Triangular Territories
• J261 Cubic Date
• J262 Bowling Score Recovery
• J263 Spot-Check Debugging
• J264 Shy Students

Solution to HKGOI 2025/26 –

• G261 Sushi Go
• G262 Removing Letters
• G263 Screws
• G264 Infinite Whack-A-Mole
• G265 Mini Metro
• G266 Full Speed Ahead

Contest Materials

Mini Competition 0 (14 Feb 2026)

Editorial