Analyzing IOI problems
Difference between en1 and en2, changed 8 character(s)
Here's the list of IOI problems from 2006 sorted by their difficulty (average score)↵

<spoiler summary="Spoiler">↵
~~~~~↵
2010 Memory                        93.19↵
2010 Cluedo                        92.69↵
2009 Garage                        91.55↵
2009 Poi                           90.05↵
2006 Deciphering the Mayan Writing 80.62↵
2020 Connecting Supertrees         77.93↵
2010 Traffic Congestion            75.91↵
2019 Arranging Shoes               74.47↵
2018 Combo                         74.12↵
2009 Raisins                       70.55↵
2007 Miners                        68.31↵
2016 Detecting Molecules           66.02↵
2013 Cave                          64.39↵
2014 Gondola                       64.26↵
2016 Paint by Number               63.6↵
2011 Parrots                       59.9↵
2011 Ricehub                       56.88↵
2010 Hotter Colder                 55.23↵
2011 Crocodile                     55.15↵
2017 The Big Prize                 54.27↵
2008 Type Printer                  53.78↵
2019 Vision Program                53.44↵
2012 Crayfish Scrivener            51.7↵
2010 Quality of Living             51.3↵
2020 Stations                      51.27↵
2015 Horses                        50.57↵
2020 Counting Mushrooms            49.65↵
2008 Linear Garden                 47.6↵
2015 Sorting                       47.07↵
2009 Mecho                         46.09↵
2006 Pyramid                       45.93↵
2007 Aliens                        45.92↵
2015 Boxes with Souvenirs          44.32↵
2013 Robots                        43.53↵
2010 Maze                          42.75↵
2007 Pairs                         42.26↵
2016 Unscrambling a Messy Bug      42.16↵
2013 Dreaming                      41.15↵
2019 Broken Line                   41.05↵
2011 Tropical Garden               40.62↵
2010 Languages                     40.08↵
2014 Wall                          39.76↵
2006 The Valley of Mexico          39.26↵
2015 Scales                        37.51↵
2019 Rectangles                    36.92↵
2014 Game                          36.57↵
2017 Nowruz                        34.51↵
2014 Friend                        33.36↵
2010 Saveit                        33.22↵
2014 Rail                          32.71↵
2013 Art Class                     32.48↵
2018 Mechanical Doll               31.54↵
2012 Ideal City                    31.39↵
2018 Werewolf                      30.6↵
2020 Carnival Tickets              29.6↵
2012 Pebbling Odometer             29.52↵
2013 Wombats                       29.42↵
2009 Hiring                        28.86↵
2013 Game                          28↵
2019 Split the Attractions         26.63↵
2011 Elephants                     26.54↵
2017 Wiring                        26.4↵
2017 Ancient Books                 26.21↵
2006 Forbidden Subgraph            26.15↵
2012 Jousting Tournament           26.1↵
2011 Race                          25.85↵
2016 Roller Coaster Railroad       25.53↵
2020 Packing Biscuits              22.85↵
2014 Holiday                       22.7↵
2015 Teams                         22.62↵
2009 Salesman                      22.42↵
2018 Meetings                      21.71↵
2007 Flood                         20.65↵
2007 Sails                         19.73↵
2006 A Black Box Game              19.11↵
2012 Parachute Rings               18.47↵
2017 Simurgh                       18.4↵
2016 Shortcut                      18.35↵
2016 Aliens                        17.86↵
2008 Islands                       17.11↵
2018 Highway Tolls                 15.66↵
2009 Regions                       15.06↵
2020 Comparing Plants              14.54↵
2008 Teleporters                   14.53↵
2018 Seats                         14.33↵
2015 Towns                         13.42↵
2019 Sky Walking                   12.69↵
2012 Last Supper                   12.5↵
2009 Archery                       11.37↵
2017 Toy Train                     10.43↵
2008 Pyramid Base                  9.82↵
2006 Joining Points                8↵
2007 Training                      5.31↵
2008 Fish                          3.02↵
~~~~~↵
</spoiler>↵

Here's the average score for a single 
problem per year↵

<spoiler summary="Spoiler">↵
![ ](https://i.imgur.com/6Ud0fp1.png)↵
</spoiler>↵

Another useful thing will be to classify problems by tags. But i don't think i'm qualified enough to tag problems. So i prepared a google forms so others can contribute. If it doesn't becomes successful i'll try to do it myself and share :D .↵

[Google form](https://forms.gle/PZwgQn9uLk4dTE947)↵

Note: Form is only for a single problem. You can submit another responses again. Please don't spam or provide fake tags.

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en2 English Lakshi4h 2021-03-01 16:11:21 8 Tiny change: 'a single per year\' -> 'a single problem per year\'
en1 English Lakshi4h 2021-03-01 16:10:40 4645 Initial revision (published)