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News: See below (updated Mon 12 Aug 2019).
Forums: Last post made Tue 23 Dec 2014.
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Welcome to the online training site for the Australian Informatics Olympiad programme!

Below you can view past AIO and FARIO problems. Register an account to get your solutions marked by our online evaluator.

Are you new to orac? Are you new to programming in general? Check out our getting started guide.

SetProblem
Starter Problems 1Addition
Sitting or Standing?
Mixed Fraction
A Mindbending Scenario
Starter Problems 2The Tremendous Tak-Tak Tree
Counting to Infinity
A Dish Best Served Cold
Drought
Starter Problems 3Encyclopædia
Dictionary
Triple Hunting
Friendlist
AIO 2019Vases
RPS
Hiring Monks
Medusa's Snakes
Evading Capture
Lollipops, Sweets and Chocolates II
AIO 2018 (Intermediate)Street Construction
Castle Cavalry
Cloud Cover
Janitor
AIO 2018 (Senior)Street Construction
Cloud Cover
Janitor
Detective
AIO 2017 (Intermediate)Missing Mango
Tag
Snake Charmer
Chimera II
AIO 2017 (Senior)Concealed Coconut
Snake Charmer
Chimera II
Lollipops, Sweets and Chocolates
AIO 2016 (Intermediate)Magic Squares
Farmer Drama
Sculpture II
AIO 2016 (Senior)Probe
Balancing Aeroplanes II
Carmen Sanfrancisco II: Bank Robbing
AIO 2015 (Intermediate)Snap Dragons II
Wet Chairs
Ruckus League
AIO 2015 (Senior)Wet Chairs
Ruckus League
Snap Dragons III: Binary Snap
AIO 2014 (Intermediate)Pygmy Hippos
Corey's Party
Chimera
AIO 2014 (Senior)Giant Hippos
Chimera
Wormhole
AIO 2013 (Intermediate)Archery
Frog
Save-It
AIO 2013 (Senior)Frog
Save-It
Artclass
AIO 2012 (Intermediate)NORT
Cabinet Shuffle
King Arthur II
AIO 2012 (Senior)Posters
Cabinet Shuffle
Awesome Frog
AIO 2011 (Intermediate)Pirates
Sleight of Hand
Tickets
AIO 2011 (Senior)Alien
Slicing Paradise
Restaurants II
AIO 2010 (Intermediate)Ninjas
Choreography
Oil
AIO 2010 (Senior)Heatwave
Snap Dragons
Island
AIO 2009 (Intermediate)Travelling Salesperson
Nomnomnom
Safe Cracking
Carmen Sanfrancisco
AIO 2009 (Senior)Nomnomnom
Treasure Hunt
Carmen Sanfrancisco
No (One) Left
AIO 2008 (Intermediate)Ladybugs
Atlantis Rising
Settling Debts
Crowd Surfing
AIO 2008 (Senior)Settling Debts
Crowd Surfing
Chocolate Shop
Russian Dolls
AIO 2007 (Intermediate)Wetlands
Superphone
Mansion
Invasion
AIO 2007 (Senior)Mansion
Invasion
Restaurants
Air Drop
AIO 2006 (Intermediate)Fashion Statement
Mouse Hunt
Psychological Jujitsu
Atlantis: The Beginning
AIO 2006 (Senior)Ants
Spies V: Voices in the Dark
Atlantis: The Beginning
Election
AIO 2005 (Intermediate)Cute Numbers
Curry
Landmark
Sculpture
AIO 2005 (Senior)Curry
Chimpanzee
Sculpture
Jigsaw
AIC 1998Shopping Malls
Anagram Solver
Building Integers
AIC 1999Hailstone Sequences
Hunt-a-Word
Cartography
King Arthur
AIC 2000Academic Espionage
Keeping Secrets
Analysing Bach
Displaying Paintings
AIC 2001Flowers
Cartography III
Spies
Mobiles
AIC 2002Halloween
Cartography II
Bureaucratic Bungling
Packing Pentominoes
AIC 2003Culture
Word Wrap
Stacking Numbers
Handwriting Recognition
AIC 2004 (Intermediate)Bugs
Genius
AFL
Atlantis
AIC 2004 (Senior)Genius
Zig-Zag Cipher
Atlantis
Bouncy Ball
AIIO 2006Spies IV
Pipes
Hard Drive
AIIO 2007Snurgle Holders
Cats III: Off With Their Heads
Trains
AIIO 2008Diva III: A Note Gone Sour
Sunday Drive
Train Network
AIIO 2009Space Invaders
IOI Team Selection
Frogs
AIIO 2010Nomnomnomnom: Can Has Dessert?
Clam Oil
Budgie Shots
AIIO 2011World Bus Driving Championships
Kiwileaks
The Terrifying Canary-Bird
AIIO 2012Time Warp
Hopscootch
Negotiations
AIIO 2013Flatman's Tower
Flight Planning II
Vitamin D
AIIO 2014The Treeless Trees
Art, Key, Texture
Memes
AIIO 2015Friendly
Going Home
Riding Jetstreams
Challenge Problems 1Anagrammatic Primes
Packing Pentominoes
Nine Clocks
Stargazing
FARIO 2004Stargazing
Blue
Chariot Race
FARIO 2005Mobile Construction Set
Monkey Tour
River
FARIO 2006Guards
Escape from Civilisation
Belts
Lucky Wheels of Doom
FARIO 2007Rescue Robot
Secret chamber of the Giza pyramid
Architecture
Global Warming
FARIO 2008Graffiti
Sledge Track
Leaf Blower
Rock Climbing
FARIO 2009Bookshop
Toy Factory
Memories
Fragrance
FARIO 2010The FARIO Incident
ABC
Dating Site IT
Human LCD
FARIO 2011Bookshelf
House of a Thousand Blades
Life
The Virus
FARIO 2012Master Chef
Happy Feet
Blackout
FARIO 2013Algo-Fu
Super Maria
Torusia
FARIO 2014NSA
Connect
Super Maria II
FARIO 2015The Nightlight
Frequent Flyer
Pam-Can Retires
FARIO 2016No Ball
Hooliganism
FARIO 2017Pair Programming
Pyramid Cake
Optimal Delivery
FARIO 2018Shadow Architecture
Greed
FARIO 2019Papa and Baby Frog
Coloured Walkway
Nav

News

IOI 2019 was in Baku, Azerbaijan from the 4th to the 11th of August. Congratulations to the Australian team for earning one gold, one silver and two bronze medals! The team placed 9th, 80th, 100th and 150th.

There are known issues with std::list, std::unordered_map and std::unordered_set, so please avoid use of these in your submissions for the time being.

 


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Contact: training@orac.amt.edu.au
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