NOI Sri Lanka — Contest Archive
Archive of contests held by the National Olympiad in Informatics Sri Lanka.
49 contests · 199 problems
2026
Qualifier Round
- DVD Screensaver
- Olinda Keliya
- Rehan and Checkpoints
- Secure Vault
- Sensor Calliberation
- Petra and Rising Garden
Final Round — Day 1
Final Round — Day 2
2025
Qualifier Round
- Open the chest 1
- Substring query 2
- sum-heh
- balanced-bracket-string
- robot-path-collision
- A-B Good Numbers
- Absolute Rotation
Final Round — Day 1
Final Round — Day 2
2024
Qualifier Round
February 2024
March 2024
April 2024
Final Round — Day 1
Final Round — Day 2
2023
Selection Test
- Top gun
- Dungeon Portals
- Back to the 90's
- Magical Eraser
- Sweet Fruits
- Chairs and Distancing: The Hotel Del Luna Case
- String decoder
- Schoolyard Showdown
- Aimballs
- Tree query - 3
January 2023
February 2023
March 2023
- Mario and the Mysterious Bridge
- Mission: Impossible – Dead Reckoning
- Planet Cruise
- I'll buy you anything
- Can you divide that
April 2023
Final Round — Day 1
Final Round — Day 2
2022
Selection Test
- Just Pens and Pencils
- Permission to Permute
- The Brackets
- Kill Team Go
- Petrol Queue
- The Perfect Fuel Queue
January 2022
February 2022
March 2022
April 2022
May 2022
Final Round — Day 1
Final Round — Day 2
2021
Selection Test
January 2021
February 2021
March 2021
April 2021
November 2021
December 2021
Final Round — Day 1
Final Round — Day 2
2020
Selection Test
February 2020
- Yazdaan's Matrix Rotation
- Mr. Borris’s Shopping Complex
- King Siripala’s Forts
- Full Moon Day
- Siri Land's Presidential Election
March 2020
April 2020
May 2020
June 2020
July 2020
December 2020
Final Round — Day 1
Final Round — Day 2
2019
Selection Test
- Nirmani's Star Patterns
- King Rawana’s Palace
- Candy Combinations
- Game of Life Simulation
- Numbers Numbers Everywhere!
- A Mouse in a Maze