Problems

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Problem Name Code Points Users AC Rate Date Added
Woburn Idol q2 3 281 33.47% 2011-03-08
Grid Sums q3 3 194 44.69% 2011-03-08
Connect 4 q4 3 159 20.99% 2011-03-08
Encryption Grid q5 7 84 47.32% 2011-03-08
Betty's Candy Cane q6 10p 83 50.25% 2011-03-10
A Romantic Dinner Outing rdinner 20 11 19.77% 2014-07-08
Root Solver rootsolve 30p 1 2.23% 2012-07-28
Rubik's Cube Solver rubik 50p 1 0.44% 2008-12-25
Super Boggle sboggle 15p 3 16.13% 2012-04-15
Skyscrapers skyscrapers 15p 18 10.20% 2009-02-13
Do You Want to Build a Snowman? snowman 7 10 38.64% 2014-06-29
Subway Routes subway 17p 42 45.67% 2012-08-10
System Solver syssolve 20p 8 11.86% 2013-07-12
Alpha Nerd (Hard) wc174s4h 25p 0 100.00% 2018-04-23
Word Wrap Cypher wordwrap 7 23 40.63% 2014-06-29
Crosswords xword 15p 3 16.67% 2011-12-24
Non-space-separated nospaces 10 32 28.22% 2011-02-22
Busy Schedule sched 10 25 47.76% 2011-02-22
Virtuoso virtuoso 15 25 19.35% 2011-02-22
The Cake is a Dessert cake 12 79 24.40% 2011-02-22
Water avatarwater 3 283 53.68% 2014-10-06
Earth avatarearth 3 118 28.22% 2014-10-06
Fire avatarfire 5 81 27.24% 2014-10-06
Air avatarair 7 30 13.96% 2014-10-06
Spirits avatarspirits 10 9 8.33% 2014-10-06
Change avatarchange 7 9 34.29% 2014-10-06
Balance avatarbalance 10 57 35.75% 2014-10-06
Bincent's Billows ecooqual2018p1 3 43 39.82% 2018-01-28
Educational Educational Computing Organization of Ontario Organization of Ontario ecooqual2018p2 5 22 15.94% 2018-01-28
Shattering Shadows 2 ecooqual2018p3 7p 2 6.45% 2018-01-28
IOI tour ecooqual2018p4 10p 5 12.50% 2018-01-28
Trick-or-Treat trickortreat 5 71 18.43% 2014-11-07
Brap Lesh Mafia brapleshmafia 5 90 21.13% 2014-11-07
2spooky4me 2spooky4me 7 36 9.53% 2014-11-07
Prime Street primestreet 10 16 11.18% 2014-11-07
Stingy Candyman candyman 10 18 22.22% 2014-11-07
Rabbit Girls rabbitgirls 5 80 21.20% 2014-11-04
Cat Girls catgirls 15p 23 23.84% 2014-11-04
Dog Girls doggirls 15p 10 14.63% 2014-11-04
Fox Girls foxgirls 25p 4 14.58% 2014-11-04
Tenri tenri 20p 27 25.50% 2014-03-19
Kirito kirito 25p 26 20.78% 2014-03-19
Esdeath esdeath 20p 27 8.81% 2014-03-19
Economy test2017p1 3 31 30.84% 2017-12-05
Budget test2017p2 3 44 23.11% 2017-12-05
TTC test2017p3 3 56 30.77% 2017-12-05
Secret Santa ssanta 10p 17 19.49% 2014-12-13
Gift Delivery giftdel 10 9 13.10% 2014-12-13
Assembly Elves elves 10p 17 12.95% 2014-12-13
Xor xor 7 23 44.26% 2014-11-10