International Olympiad in Informatics – Statistics
Tasks
Year | No. | Name | Max. Score | Average Score ▲ | Full Solutions | |||
---|---|---|---|---|---|---|---|---|
Day | Task | Abs. | Rel. | Abs. | Rel. | |||
2008 | 1 | 2 | Fish | 100 | 3.02 | 3.02% | 1 | 0.35% |
2024 | 2 | 4 | Hieroglyphs | 100 | 4.60 | 4.60% | 2 | 0.55% |
2007 | 2 | 6 | Training | 100 | 5.31 | 5.31% | 3 | 1.04% |
2006 | 2 | 5 | Joining Points | 100 | 8.00 | 8.00% | 1 | 0.35% |
2008 | 2 | 6 | Pyramid Base | 100 | 9.82 | 9.82% | 0 | 0.00% |
2017 | 1 | 3 | Toy Train | 100 | 10.46 | 10.46% | 4 | 1.29% |
2004 | 1 | 3 | Polygon | 100 | 11.29 | 11.29% | 1 | 0.34% |
2009 | 1 | 1 | Archery | 100 | 11.37 | 11.37% | 0 | 0.00% |
2003 | 2 | 5 | Amazing Robots | 100 | 12.28 | 12.28% | 7 | 2.60% |
2012 | 2 | 5 | Last Supper | 100 | 12.50 | 12.50% | 9 | 2.87% |
2019 | 2 | 6 | Sky Walking | 100 | 12.69 | 12.69% | 2 | 0.60% |
2015 | 2 | 6 | Towns | 100 | 13.42 | 13.42% | 7 | 2.17% |
2003 | 1 | 2 | Comparing Code | 100 | 13.96 | 13.96% | 4 | 1.49% |
1997 | 2 | 4 | Character Recognition | 100 | 14.26 | 14.26% | 0 | 0.00% |
2018 | 1 | 2 | Seats | 100 | 14.33 | 14.33% | 1 | 0.29% |
2008 | 2 | 4 | Teleporters | 100 | 14.53 | 14.53% | 25 | 8.83% |
2020 | 1 | 1 | Comparing Plants | 100 | 14.54 | 14.54% | 9 | 2.59% |
2023 | 2 | 4 | Beech Tree | 100 | 14.90 | 14.90% | 2 | 0.56% |
2009 | 2 | 7 | Regions | 100 | 15.06 | 15.06% | 3 | 0.97% |
2018 | 2 | 5 | Highway Tolls | 100 | 15.66 | 15.66% | 1 | 0.29% |
2008 | 1 | 3 | Islands | 100 | 17.11 | 17.11% | 9 | 3.18% |
2021 | 2 | 6 | Bit Shift Registers | 100 | 17.43 | 17.43% | 7 | 1.97% |
1997 | 1 | 2 | Game of Hex | 100 | 17.45 | 17.45% | 0 | 0.00% |
2024 | 1 | 3 | Tree | 100 | 17.57 | 17.57% | 5 | 1.37% |
2016 | 2 | 6 | Aliens | 100 | 17.86 | 17.86% | 1 | 0.32% |
1 | 3 | Shortcut | 100 | 18.35 | 18.35% | 1 | 0.32% | |
2017 | 2 | 5 | Simurgh | 100 | 18.46 | 18.46% | 4 | 1.29% |
2003 | 2 | 6 | Seeing the Boundary | 100 | 18.47 | 18.47% | 8 | 2.97% |
2012 | 1 | 2 | Parachute Rings | 100 | 18.47 | 18.47% | 22 | 7.01% |
2006 | 2 | 6 | A Black Box Game | 100 | 19.11 | 19.11% | 0 | 0.00% |
2022 | 1 | 3 | Radio Towers | 100 | 19.40 | 19.40% | 8 | 2.27% |
2007 | 1 | 3 | Sails | 100 | 19.73 | 19.73% | 12 | 4.15% |
2 | Flood | 100 | 20.65 | 20.65% | 24 | 8.30% | ||
2021 | 1 | 1 | Distributing Candies | 100 | 20.92 | 20.92% | 24 | 6.76% |
2018 | 2 | 6 | Meetings | 100 | 21.71 | 21.71% | 0 | 0.00% |
2009 | 2 | 8 | Salesman | 100 | 22.42 | 22.42% | 22 | 7.12% |
2015 | 1 | 3 | Teams | 100 | 22.62 | 22.62% | 14 | 4.35% |
2014 | 2 | 6 | Holiday | 100 | 22.70 | 22.70% | 11 | 3.54% |
2020 | 2 | 4 | Packing Biscuits | 100 | 22.85 | 22.85% | 35 | 10.09% |
2023 | 1 | 1 | Closing Time | 100 | 22.95 | 22.95% | 11 | 3.11% |
3 | Soccer Stadium | 100.0 | 23.38 | 23.38% | 3 | 0.85% | ||
1997 | 2 | 6 | Stacking Containers | 100 | 24.78 | 24.78% | 0 | 0.00% |
2022 | 2 | 4 | Digital Circuit | 100 | 25.32 | 25.32% | 52 | 14.73% |
2016 | 1 | 2 | Roller Coaster Railroad | 100 | 25.53 | 25.53% | 4 | 1.28% |
2011 | 1 | 2 | Race | 100 | 25.85 | 25.85% | 29 | 9.45% |
2023 | 2 | 6 | Robot Contest | 100 | 26.00 | 26.00% | 0 | 0.00% |
2012 | 2 | 6 | Jousting Tournament | 100 | 26.10 | 26.10% | 38 | 12.10% |
2006 | 1 | 3 | Forbidden Subgraph | 100 | 26.15 | 26.15% | 1 | 0.35% |
2017 | 2 | 6 | Ancient Books | 100 | 26.30 | 26.30% | 15 | 4.82% |
1 | 2 | Wiring | 100 | 26.49 | 26.49% | 45 | 14.47% | |
1991 | 2 | 2 | S-terms Problem | 100 | 26.51 | 26.51% | 0 | 0.00% |
2011 | 2 | 5 | Elephants | 100 | 26.54 | 26.54% | 6 | 1.95% |
2019 | 1 | 2 | Split the Attractions | 100 | 26.63 | 26.63% | 6 | 1.81% |
2013 | 2 | 6 | Game | 100 | 28.00 | 28.00% | 6 | 1.99% |
2022 | 2 | 6 | Thousands Islands | 100.00 | 28.64 | 28.64% | 6 | 1.70% |
2009 | 1 | 2 | Hiring | 100 | 28.86 | 28.86% | 30 | 9.71% |
2013 | 1 | 3 | Wombats | 100 | 29.42 | 29.42% | 3 | 0.99% |
2012 | 1 | 1 | Pebbling Odometer | 100 | 29.52 | 29.52% | 2 | 0.64% |
2020 | 1 | 3 | Carnival Tickets | 100 | 29.60 | 29.60% | 39 | 11.24% |
2021 | 1 | 3 | Fountain Parks | 100 | 29.69 | 29.69% | 11 | 3.10% |
2 | 5 | Dungeons Game | 100 | 30.46 | 30.46% | 15 | 4.23% | |
2018 | 1 | 3 | Werewolf | 100 | 30.60 | 30.60% | 17 | 5.01% |
2021 | 1 | 2 | Keys | 100 | 31.04 | 31.04% | 17 | 4.79% |
2012 | 2 | 4 | Ideal City | 100 | 31.39 | 31.39% | 6 | 1.91% |
2018 | 2 | 4 | Mechanical Doll | 100 | 31.54 | 31.54% | 36 | 10.62% |
2013 | 1 | 2 | Art Class | 100 | 32.48 | 32.48% | 13 | 4.30% |
2014 | 1 | 1 | Rail | 100 | 32.71 | 32.71% | 17 | 5.47% |
2010 | 2 | 8 | Saveit | 100 | 33.22 | 33.22% | 6 | 1.99% |
2014 | 2 | 5 | Friend | 100 | 33.36 | 33.36% | 13 | 4.18% |
2022 | 1 | 1 | Catfish Farm | 100 | 33.77 | 33.77% | 48 | 13.60% |
2003 | 1 | 3 | Reverse | 100.0 | 34.07 | 34.07% | 0 | 0.00% |
2023 | 1 | 2 | Longest Trip | 100 | 34.44 | 34.44% | 10 | 2.82% |
2024 | 2 | 6 | Sphinx's Riddle | 100.0 | 34.48 | 34.48% | 9 | 2.46% |
2017 | 1 | 1 | Nowruz | 100.00 | 34.62 | 34.62% | 0 | 0.00% |
2022 | 2 | 5 | Rarest Insects | 100.00 | 35.04 | 35.04% | 9 | 2.55% |
2010 | 1 | 4 | Languages | 110 | 40.08 | 36.43% | 0 | 0.00% |
2014 | 1 | 3 | Game | 100 | 36.57 | 36.57% | 71 | 22.83% |
2024 | 1 | 2 | Message | 100.00 | 36.84 | 36.84% | 1 | 0.27% |
2019 | 1 | 3 | Rectangles | 100 | 36.92 | 36.92% | 23 | 6.95% |
2015 | 1 | 2 | Scales | 100.00 | 37.51 | 37.51% | 9 | 2.80% |
1995 | 1 | 2 | Shopping Offers | 40 | 15.09 | 37.71% | 20 | 9.52% |
1997 | 1 | 3 | Toxic iShongololo | 100 | 37.81 | 37.81% | 0 | 0.00% |
2022 | 1 | 2 | Prisoner Challenge | 100.0 | 38.44 | 38.44% | 8 | 2.27% |
2010 | 2 | 7 | Maze | 110 | 42.75 | 38.86% | 0 | 0.00% |
2004 | 1 | 1 | Artemis | 100 | 39.08 | 39.08% | 4 | 1.36% |
2006 | 2 | 4 | The Valley of Mexico | 100 | 39.26 | 39.26% | 79 | 27.82% |
1989 | 1 | 3 | Boxes: Subproblem 3 | 50 | 19.70 | 39.39% | 5 | 10.87% |
2014 | 1 | 2 | Wall | 100 | 39.76 | 39.76% | 82 | 26.37% |
1995 | 1 | 3 | Printing | 30 | 11.94 | 39.79% | 1 | 0.48% |
2 | 6 | Wires and Switches | 40 | 15.92 | 39.81% | 10 | 4.76% | |
2011 | 1 | 1 | Tropical Garden | 100 | 40.62 | 40.62% | 36 | 11.73% |
2019 | 2 | 4 | Broken Line | 100.00 | 41.05 | 41.05% | 0 | 0.00% |
2013 | 1 | 1 | Dreaming | 100 | 41.15 | 41.15% | 94 | 31.13% |
2016 | 2 | 5 | Unscrambling a Messy Bug | 100 | 42.16 | 42.16% | 62 | 19.87% |
2007 | 2 | 5 | Pairs | 100 | 42.26 | 42.26% | 9 | 3.11% |
2013 | 2 | 5 | Robots | 100 | 43.53 | 43.53% | 47 | 15.56% |
2004 | 2 | 4 | Empodia | 100 | 43.93 | 43.93% | 16 | 5.42% |
2015 | 1 | 1 | Boxes with Souvenirs | 100 | 44.32 | 44.32% | 96 | 29.81% |
2023 | 2 | 5 | Overtaking | 100 | 44.62 | 44.62% | 28 | 7.91% |
1995 | 2 | 4 | Letter Game | 30 | 13.40 | 44.68% | 47 | 22.38% |
1 | 1 | Packing Rectangles | 30 | 13.51 | 45.05% | 32 | 15.24% | |
2007 | 1 | 1 | Aliens | 100 | 45.92 | 45.92% | 60 | 20.76% |
2006 | 1 | 2 | Pyramid | 100 | 45.93 | 45.93% | 46 | 16.20% |
2009 | 2 | 6 | Mecho | 100 | 46.09 | 46.09% | 58 | 18.77% |
1997 | 2 | 5 | Map Labelling | 100 | 46.78 | 46.78% | 6 | 2.71% |
2015 | 2 | 5 | Sorting | 100 | 47.07 | 47.07% | 59 | 18.32% |
2008 | 2 | 5 | Linear Garden | 100 | 47.60 | 47.60% | 82 | 28.98% |
1995 | 2 | 5 | Street Race | 30 | 14.35 | 47.83% | 12 | 5.71% |
2003 | 1 | 1 | Trail Maintenance | 100 | 48.25 | 48.25% | 74 | 27.51% |
2020 | 2 | 5 | Counting Mushrooms | 100.00 | 49.65 | 49.65% | 1 | 0.29% |
2015 | 2 | 4 | Horses | 100 | 50.57 | 50.57% | 117 | 36.34% |
2020 | 2 | 6 | Stations | 100.00 | 51.27 | 51.27% | 91 | 26.22% |
2010 | 1 | 3 | Quality of Living | 100 | 51.30 | 51.30% | 64 | 21.26% |
2012 | 1 | 3 | Crayfish Scrivener | 100 | 51.70 | 51.70% | 82 | 26.11% |
2004 | 1 | 2 | Hermes | 100 | 52.56 | 52.56% | 47 | 15.93% |
2019 | 2 | 5 | Vision Program | 100 | 53.44 | 53.44% | 47 | 14.20% |
2004 | 2 | 5 | Phidias | 100 | 53.54 | 53.54% | 76 | 25.76% |
2008 | 1 | 1 | Type Printer | 100 | 53.78 | 53.78% | 118 | 41.70% |
2017 | 2 | 4 | The Big Prize | 100.00 | 54.44 | 54.44% | 27 | 8.68% |
2003 | 2 | 4 | Guess Which Cow | 100.0 | 54.78 | 54.78% | 1 | 0.37% |
2011 | 2 | 4 | Crocodile | 100 | 55.15 | 55.15% | 108 | 35.18% |
2010 | 1 | 2 | Hotter Colder | 100 | 55.23 | 55.23% | 0 | 0.00% |
1989 | 1 | 2 | Boxes: Subproblem 2 | 40 | 22.28 | 55.71% | 9 | 19.57% |
2004 | 2 | 6 | Farmer | 100 | 56.00 | 56.00% | 65 | 22.03% |
2011 | 1 | 3 | Ricehub | 100 | 56.88 | 56.88% | 113 | 36.81% |
2024 | 2 | 5 | Mosaic | 100 | 59.26 | 59.26% | 93 | 25.41% |
2011 | 2 | 6 | Parrots | 100 | 59.90 | 59.90% | 7 | 2.28% |
1997 | 1 | 1 | Mars Explorer | 100 | 61.09 | 61.09% | 44 | 19.91% |
2016 | 2 | 4 | Paint by Number | 100 | 63.60 | 63.60% | 91 | 29.17% |
2014 | 2 | 4 | Gondola | 100 | 64.26 | 64.26% | 114 | 36.66% |
2013 | 2 | 4 | Cave | 100 | 64.39 | 64.39% | 135 | 44.70% |
2016 | 1 | 1 | Detecting Molecules | 100 | 66.02 | 66.02% | 159 | 50.96% |
2024 | 1 | 1 | Nile | 100 | 68.09 | 68.09% | 126 | 34.43% |
2007 | 2 | 4 | Miners | 100 | 68.31 | 68.31% | 131 | 45.33% |
2009 | 1 | 4 | Raisins | 100 | 70.55 | 70.55% | 202 | 65.37% |
1989 | 1 | 1 | Boxes: Subproblem 1 | 10 | 7.28 | 72.83% | 18 | 39.13% |
1991 | 1 | 1 | Square Problem | 100 | 73.30 | 73.30% | 2 | 2.70% |
2018 | 1 | 1 | Combo | 100 | 74.12 | 74.12% | 187 | 55.16% |
2019 | 1 | 1 | Arranging Shoes | 100 | 74.47 | 74.47% | 171 | 51.66% |
2010 | 2 | 6 | Traffic Congestion | 100 | 75.91 | 75.91% | 188 | 62.46% |
2020 | 1 | 2 | Connecting Supertrees | 100 | 77.93 | 77.93% | 152 | 43.80% |
2006 | 1 | 1 | Deciphering the Mayan Writing | 100 | 80.62 | 80.62% | 203 | 71.48% |
2009 | 1 | 3 | Poi | 100 | 90.05 | 90.05% | 261 | 84.47% |
2 | 5 | Garage | 100 | 91.55 | 91.55% | 273 | 88.35% | |
2010 | 1 | 1 | Cluedo | 100 | 92.69 | 92.69% | 269 | 89.37% |
2 | 5 | Memory | 100 | 93.19 | 93.19% | 275 | 91.36% | |
2021 | 2 | 4 | Mutating DNA | 100 | 93.42 | 93.42% | 304 | 85.63% |
2005 | 1 | 1 | Garden | 100 | N/A | |||
2 | Mountain | 100 | N/A | |||||
3 | Mean Sequence | 100 | N/A | |||||
2 | 4 | Birthday | 100 | N/A | ||||
5 | Rectangle Game | 100 | N/A | |||||
6 | Rivers | 100 | N/A | |||||
2002 | 1 | 1 | The Troublesome Frog | 100 | N/A | |||
2 | Utopia Divided | 100 | N/A | |||||
3 | XOR | 100 | N/A | |||||
2 | 4 | Batch Scheduling | 100 | N/A | ||||
5 | Bus Terminals | 100 | N/A | |||||
6 | Two Rods | 100 | N/A | |||||
2001 | 1 | 1 | Mobile Phones | 100 | N/A | |||
2 | Ioiwari Game | 100 | N/A | |||||
3 | Twofive | 100 | N/A | |||||
2 | 4 | Score | 100 | N/A | ||||
5 | Double Crypt | 100 | N/A | |||||
6 | Depot | 100 | N/A | |||||
2000 | 1 | 1 | Palindrome | 100 | N/A | |||
2 | Car Parking | 100 | N/A | |||||
3 | Median Strength | 100 | N/A | |||||
2 | 4 | Walls | 100 | N/A | ||||
5 | Post Office | 100 | N/A | |||||
6 | Building with Blocks | 100 | N/A | |||||
1999 | 1 | 1 | Little Shop of Flowers | 100 | N/A | |||
2 | Hidden Codes | 100 | N/A | |||||
3 | Underground City | 100 | N/A | |||||
2 | 4 | Traffic Lights | 100 | N/A | ||||
5 | Flatten | 100 | N/A | |||||
6 | A Strip of Land | 100 | N/A | |||||
1998 | 1 | 1 | Contact | 100 | N/A | |||
2 | Starry Night | 150 | N/A | |||||
3 | Party Lamps | 100 | N/A | |||||
2 | 4 | Picture | 100 | N/A | ||||
5 | Camelot | 150 | N/A | |||||
6 | Polygon | 100 | N/A | |||||
1996 | 1 | 1 | A Game | N/A | N/A | |||
2 | Job Processing | N/A | N/A | |||||
3 | Network of Schools | N/A | N/A | |||||
2 | 4 | Sorting a Three-Valued Sequence | N/A | N/A | ||||
5 | Longest Prefix | N/A | N/A | |||||
6 | Magic Squares | N/A | N/A | |||||
1994 | 1 | 1 | The Triangle | 30 | N/A | |||
2 | The Castle | 30 | N/A | |||||
3 | The Primes | 40 | N/A | |||||
2 | 4 | The Clocks | 30 | N/A | ||||
5 | The Buses | 30 | N/A | |||||
6 | The Circle | 40 | N/A | |||||
1993 | 1 | 1 | Necklace | N/A | N/A | |||
2 | Company | N/A | N/A | |||||
3 | Rectangles | N/A | N/A | |||||
2 | 4 | Canadian Airlines | 100 | N/A | ||||
1992 | 1 | 1 | Islands in the Sea | 100 | N/A | |||
2 | 2 | Climbing a Mountain | 100 | N/A | ||||
1990 | 1 | 1 | Schedule | 100 | N/A | |||
2 | 2 | Robots | 100 | N/A |