OJUZ-OI (非公式難易度順 JOI/APIO/IOI 過去問)

非公式難易度の最終更新：2022/06/22

問題一覧の情報は GitHub にあるので，更新したい方はよければ Pull Request を送ってください．

難易度 問題名 リンク 出典 問題タイプ ライバル
2 Reversing a Sequence IOI 2016 Day0-2 Batch
3 Laugh Analysis IOI 2016 Day0-3 Batch
4 Cluedo IOI 2010 Day1-1 Interactive
4 Memory IOI 2010 Day2-1 Interactive
5 Poi IOI 2009 Day1-3 Batch
5 Garage IOI 2009 Day2-1 Batch
6 JOIOJI JOIsp 2014 Day3-1 Batch
6 Mini tetris IOI 2016 Day0-1 Batch
7 Ramen JOIsp 2014 Day1-4 Interactive
7 Straps JOIsp 2014 Day4-3 Batch
7 Miners IOI 2007 Day2-1 Batch
7 Type Printer IOI 2008 Day1-1 Batch
7 Raisins IOI 2009 Day1-4 Batch
7 Mecho IOI 2009 Day2-2 Batch
7 Lost in the cycle IOI 2019 Day0-2 Interactive
7 Handcrafted Gift IOI 2020 Day0-1 Batch
7 Mutating DNA IOI 2021 Day2-1 Batch
8 Mascots JOIsp 2013 Day2-2 Batch
8 Mountain Rescue Team JOIsp 2013 Day3-3 Interactive
8 Copy and Paste 2 JOIsp 2015 Day1-1 Batch
8 Strange Device APIO 2019 1 Batch
8 Linear Garden IOI 2008 Day2-1 Batch
8 Teleporters IOI 2008 Day2-2 Batch
8 Hiring IOI 2009 Day1-2 Batch
8 Traffic IOI 2010 Day2-2 Batch
8 Rice Hub IOI 2011 Day1-3 Batch
8 Cave IOI 2013 Day2-1 Interactive
8 Gondola IOI 2014 Day2-1 Batch
8 Detecting Molecules IOI 2016 Day1-1 Batch
8 Combo IOI 2018 Day1-1 Interactive
8 Jelly Flavours IOI 2020 Day0-4 Batch
8 Connecting Supertrees IOI 2020 Day1-2 Batch
9 Collecting Images is Fun JOIsp 2013 Day1-2 Batch
9 Spy JOIsp 2013 Day2-3 Batch
9 Bus JOIsp 2014 Day1-1 Batch
9 Growing Vegetables is Fun JOIsp 2014 Day1-2 Batch
9 Making Friends is Fun JOIsp 2014 Day2-2 Batch
9 Memory 2 JOIsp 2016 Day1-2 Interactive
9 Employment JOIsp 2016 Day2-1 Batch
9 Toilets JOIsp 2016 Day2-3 Batch
9 Telegraph JOIsp 2016 Day3-3 Batch
9 Snowy Roads JOIsp 2016 Day4-2 Interactive
9 Tents JOIsp 2018 Day1-3 Batch
9 Worst Reporter 3 JOIsp 2018 Day2-3 Batch
9 Lamps JOIsp 2019 Day3-2 Batch
9 Building 4 JOIsp 2020 Day1-1 Batch
9 Super Dango Maker JOIsp 2022 Day4-1 Batch
9 Bali Sculptures APIO 2015 1 Batch
9 Travelling Merchant APIO 2017 2 Batch
9 Aliens IOI 2007 Day1-1 Interactive
9 Flood IOI 2007 Day1-2 Batch
9 Salesman IOI 2009 Day2-4 Batch
9 Quality Of Living IOI 2010 Day1-3 Batch
9 Tropical Garden IOI 2011 Day1-1 Batch
9 Crocodile's Underground City IOI 2011 Day2-1 Batch
9 Crayfish scrivener IOI 2012 Day1-3 Batch
9 Jousting tournament IOI 2012 Day2-3 Batch
9 Robots IOI 2013 Day2-2 Batch
9 Boxes with souvenirs IOI 2015 Day1-1 Batch
9 Paint By Numbers IOI 2016 Day2-1 Batch
9 Cup of Jamshid IOI 2017 Day0-2 Interactive
9 Coins IOI 2017 Day0-3 Interactive
9 Finding Routers IOI 2020 Day0-3 Batch
10 Construction Project JOIsp 2013 Day2-1 Batch
10 Koala JOIsp 2013 Day3-2 Batch
10 Historical Research JOIsp 2014 Day1-3 Batch
10 Water Bottle JOIsp 2014 Day2-1 Batch
10 Collecting Stamps JOIsp 2014 Day2-3 Batch
10 Voltage JOIsp 2014 Day3-3 Batch
10 Limited Memory JOIsp 2015 Day4-2 Interactive
10 Matryoshka JOIsp 2016 Day1-1 Batch
10 Dangerous Skating JOIsp 2016 Day4-1 Batch
10 Worst Reporter 2 JOIsp 2016 Day4-3 Batch
10 Airline Route Map JOIsp 2018 Day3-1 Interactive
10 Bitaro's Party JOIsp 2018 Day3-2 Batch
10 Library JOIsp 2018 Day4-2 Interactive
10 Examination JOIsp 2019 Day1-1 Batch
10 Mergers JOIsp 2019 Day4-2 Batch
10 Road Construction JOIsp 2021 Day2-2 Batch
10 Event Hopping 2 JOIsp 2021 Day4-1 Batch
10 Misspelling JOIsp 2022 Day1-3 Batch
10 Team Contest JOIsp 2022 Day2-3 Batch
10 Sprinkler JOIsp 2022 Day3-2 Batch
10 Robots APIO 2013 1 Batch
10 Split the sequence APIO 2014 2 Batch
10 Beads and wires APIO 2014 3 Batch
10 Jakarta Skyscrapers APIO 2015 2 Batch
10 Palembang Bridges APIO 2015 3 Batch
10 Boat APIO 2016 1 Batch
10 Gap APIO 2016 3 Interactive
10 Painting Walls APIO 2020 1 Batch
10 Swapping Cities APIO 2020 2 Batch
10 Rainforest Jumps APIO 2021 2 Interactive
10 Race IOI 2011 Day1-2 Batch
10 Parrots IOI 2011 Day2-3 Interactive
10 Parachute rings IOI 2012 Day1-2 Batch
10 Dreaming IOI 2013 Day1-1 Batch
10 Art Class IOI 2013 Day1-2 Batch
10 Game IOI 2013 Day2-3 Interactive
10 Wall IOI 2014 Day1-2 Batch
10 Game IOI 2014 Day1-3 Batch
10 Horses IOI 2015 Day2-1 Batch
10 Sorting IOI 2015 Day2-2 Batch
10 Martian DNA IOI 2016 Day0-4 Interactive
10 Unscrambling a Messy Bug IOI 2016 Day2-2 Interactive
10 Mountains IOI 2017 Day0-1 Batch
10 The Big Prize IOI 2017 Day2-1 Interactive
10 Data Transfer IOI 2019 Day0-3 Interactive
10 Arranging Shoes IOI 2019 Day1-1 Batch
10 Vision Program IOI 2019 Day2-2 Interactive
11 Constellation JOIsp 2012 Day2-2 Batch
11 Rotate JOIsp 2012 Day2-3 Batch
11 Scarecrows JOIsp 2014 Day3-2 Batch
11 Constellation 2 JOIsp 2014 Day4-1 Batch
11 Solitaire JOIsp 2016 Day1-3 Batch
11 Dungeon 2 JOIsp 2016 Day3-1 Batch
11 Sushi JOIsp 2016 Day3-2 Batch
11 Cultivation JOIsp 2017 Day1-1 Batch
11 Port Facility JOIsp 2017 Day1-2 Batch
11 Broken Device JOIsp 2017 Day2-2 Batch
11 Long Distance Coach JOIsp 2017 Day3-1 Batch
11 Long Mansion JOIsp 2017 Day3-2 Batch
11 Abduction 2 JOIsp 2017 Day4-1 Batch
11 Dragon 2 JOIsp 2017 Day4-3 Batch
11 Construction of Highway JOIsp 2018 Day1-1 Batch
11 Meetings JOIsp 2019 Day1-2 Interactive
11 Naan JOIsp 2019 Day1-3 Batch
11 Two Transportations JOIsp 2019 Day2-3 Communication
11 Bitaro，who Leaps through Time JOIsp 2019 Day3-3 Batch
11 Cake 3 JOIsp 2019 Day4-1 Batch
11 Making Friends on Joitter is Fun JOIsp 2020 Day2-2 Batch
11 Harvest JOIsp 2020 Day3-2 Batch
11 Stray Cat JOIsp 2020 Day3-3 Interactive
11 Capital City JOIsp 2020 Day4-1 Batch
11 Legendary Dango Maker JOIsp 2020 Day4-2 Output Only
11 Treatment Project JOIsp 2020 Day4-3 Batch
11 IOI Fever JOIsp 2021 Day1-2 Batch
11 Food Court JOIsp 2021 Day1-3 Batch
11 Escape Route JOIsp 2021 Day2-1 Batch
11 Ancient Machine JOIsp 2021 Day3-1 Interactive
11 Bodyguard JOIsp 2021 Day3-2 Batch
11 Meetings 2 JOIsp 2021 Day3-3 Batch
11 Worst Reporter 4 JOIsp 2021 Day4-3 Batch
11 Jail JOIsp 2022 Day1-1 Batch
11 Copy and Paste 3 JOIsp 2022 Day2-1 Batch
11 Reconstruction Project JOIsp 2022 Day4-3 Batch
11 Palindromes APIO 2014 1 Batch
11 Fireworks APIO 2016 2 Batch
11 Koala Game APIO 2017 3 Interactive
11 New Home APIO 2018 1 Batch
11 Duathlon APIO 2018 3 Batch
11 Bridges APIO 2019 2 Batch
11 Street Lamps APIO 2019 3 Batch
11 Fun Tour APIO 2020 3 Interactive
11 Road Closures APIO 2021 3 Batch
11 Sails IOI 2007 Day1-3 Batch
11 Pairs IOI 2007 Day2-2 Batch
11 Islands IOI 2008 Day1-2 Batch
11 Dancing Elephants IOI 2011 Day2-2 Batch
11 Odometer IOI 2012 Day1-1 Batch
11 Ideal city IOI 2012 Day2-1 Batch
11 Last supper IOI 2012 Day2-2 Interactive
11 Rail IOI 2014 Day1-1 Interactive
11 Friend IOI 2014 Day2-2 Batch
11 Holiday IOI 2014 Day2-3 Batch
11 Teams IOI 2015 Day1-3 Batch
11 Roller Coaster Railroad IOI 2016 Day1-2 Batch
11 Wiring IOI 2017 Day1-2 Batch
11 Werewolf IOI 2018 Day1-3 Batch
11 Mechanical Doll IOI 2018 Day2-1 Batch
11 Job Scheduling IOI 2019 Day0-1 Batch
11 Rectangles IOI 2019 Day1-3 Batch
11 Carnival Tickets IOI 2020 Day1-3 Batch
11 Packing Biscuits IOI 2020 Day2-1 Batch
11 Stations IOI 2020 Day2-3 Interactive
11 Distributing Candies IOI 2021 Day1-1 Batch
11 Dungeons Game IOI 2021 Day2-2 Batch
12 Cake JOIsp 2013 Day3-1 Batch
12 Kanji Shiritori JOIsp 2014 Day4-2 Batch
12 Walls JOIsp 2015 Day4-3 Batch
12 Sandwich JOIsp 2016 Day2-2 Batch
12 Sparklers JOIsp 2017 Day1-3 Batch
12 Arranging Tickets JOIsp 2017 Day2-1 Batch
12 Railway Trip JOIsp 2017 Day2-3 Batch
12 Natural Park JOIsp 2017 Day3-3 Batch
12 City JOIsp 2017 Day4-2 Interactive
12 Fences JOIsp 2018 Day1-2 Batch
12 Asceticism JOIsp 2018 Day2-1 Batch
12 Security Gate JOIsp 2018 Day3-3 Batch
12 Candies JOIsp 2018 Day4-1 Batch
12 Wild Boar JOIsp 2018 Day4-3 Batch
12 Two Antennas JOIsp 2019 Day2-1 Batch
12 Two Dishes JOIsp 2019 Day2-2 Batch
12 Designated Cities JOIsp 2019 Day3-1 Batch
12 Minerals JOIsp 2019 Day4-3 Interactive
12 Hamburg Steak JOIsp 2020 Day1-2 Batch
12 Sweeping JOIsp 2020 Day1-3 Batch
12 Chameleon's Love JOIsp 2020 Day2-1 Interactive
12 Ruins 3 JOIsp 2020 Day2-3 Batch
12 Constellation 3 JOIsp 2020 Day3-1 Batch
12 Navigation 2 JOIsp 2021 Day4-2 Communication
12 Sightseeing in Kyoto JOIsp 2022 Day1-2 Batch
12 Broken Device 2 JOIsp 2022 Day3-1 Interactive
12 Ants and Sugar JOIsp 2022 Day3-3 Batch
12 Fish 2 JOIsp 2022 Day4-2 Batch
12 Toll APIO 2013 2 Batch
12 Land of the Rainbow Gold APIO 2017 1 Batch
12 Circle selection APIO 2018 2 Batch
12 Hexagonal Territory APIO 2021 1 Batch
12 Languages IOI 2010 Day1-4 Interactive
12 Saveit IOI 2010 Day2-4 Interactive
12 Wombats IOI 2013 Day1-3 Batch
12 Scales IOI 2015 Day1-2 Interactive
12 Shortcut IOI 2016 Day1-3 Batch
12 Aliens IOI 2016 Day2-3 Batch
12 Toy Train IOI 2017 Day1-3 Batch
12 Simurgh IOI 2017 Day2-2 Interactive
12 Ancient Books IOI 2017 Day2-3 Batch
12 Seats IOI 2018 Day1-2 Batch
12 Highway Tolls IOI 2018 Day2-2 Interactive
12 Split the Attractions IOI 2019 Day1-2 Batch
12 Sky Walking IOI 2019 Day2-3 Batch
12 Comparing Plants IOI 2020 Day1-1 Batch
12 Counting Mushrooms IOI 2020 Day2-2 Interactive
12 Keys IOI 2021 Day1-2 Batch
12 Fountain Parks IOI 2021 Day1-3 Batch
12 Bit Shift Registers IOI 2021 Day2-3 Batch
13 Aerobatics JOIsp 2021 Day1-1 Output Only
13 Shopping JOIsp 2021 Day2-3 Communication
13 Flights JOIsp 2022 Day2-2 Communication
13 Hotter Colder IOI 2010 Day1-2 Interactive
13 Meetings IOI 2018 Day2-3 Batch
Synchronization JOIop 2013 2 Batch
Watching JOIop 2013 3 Batch
Factories JOIop 2014 Day1-1 Batch
Fortune Telling 2 JOIop 2014 Day1-2 Batch
Space Pirate JOIop 2014 Day1-3 Batch
Project of Migration JOIop 2014 Day2-1 Output Only
Pinball JOIop 2014 Day2-2 Batch
Secret JOIop 2014 Day2-3 Batch
Election Campaign JOIop 2015 2 Batch
Sterilizing Spray JOIop 2015 3 Batch
JOIRIS JOIop 2016 1 Batch
Selling RNA Strands JOIop 2016 2 Batch
Skyscraper JOIop 2016 3 Batch
Amusement Park JOIop 2017 1 Interactive
Bulldozer JOIop 2017 2 Batch
Golf JOIop 2017 3 Batch
Bubble Sort 2 JOIop 2018 1 Batch
Cats and Dogs JOIop 2018 2 Batch
Collapse JOIop 2018 3 Batch
Xylophone JOIop 2018 4 Interactive
Triple Jump JOIop 2019 1 Batch
Remittance JOIop 2019 2 Batch
Virus Experiment JOIop 2019 3 Batch
Furniture JOIop 2020 1 Batch
Monochrome Points JOIop 2020 2 Batch
Power Plant JOIop 2020 3 Batch
Crossing JOIop 2021 1 Batch
Financial Report JOIop 2021 2 Batch
Monster Game JOIop 2021 3 Interactive
Mars APIO 2022 1 Communication
Game APIO 2022 2 Interactive
Permucation APIO 2022 3 Batch
Training IOI 2007 Day2-3 Batch
Fish IOI 2008 Day1-3 Batch
Pyramid Base IOI 2008 Day2-3 Batch
Archery IOI 2009 Day1-1 Batch
Regions IOI 2009 Day2-3 Interactive
Maze IOI 2010 Day2-3 Output Only
Towns IOI 2015 Day2-3 Interactive
Sudoku IOI 2017 Day0-4 Batch
Nowruz IOI 2017 Day1-1 Output Only
Packing IOI 2019 Day0-4 Output Only
Broken Line IOI 2019 Day2-1 Output Only
Painting Squares IOI 2020 Day0-2 Batch

リンク集