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Problem Category Points AC % Users ▴
COCI '20 Contest 4 #4 Janjetina COCI 20p 23.0% 18
DMOPC '21 Contest 3 P5 - Crowded Travels DMOPC 20p 20.8% 18
DMOPC '20 Contest 6 P6 - Dumping Buckets DMOPC 25p 9.7% 18
Baltic OI '09 P4 - Rectangle Baltic OI 10p 12.1% 18
An Animal Contest 6 P5 - Rock Painting AAC 20p 12.3% 18
Baltic OI '11 P4 - Treasures and Vikings Baltic OI 15p 37.7% 18
MCIPC Contest 1 P5 - Rainwater Uncategorized 7 21.7% 18
Cheerio Contest 2 P4 - Modulus Finding Uncategorized 7p 14.5% 18
EGOI '22 P2 - Lego Wall EGOI 15p 12.1% 18
Lyndon's Golf Contest 1 P4 - Symbolic Ruby Uncategorized 0p 13.2% 18
CCO '23 P6 - Triangle Collection CCO 25p 16.7% 18
Mock CCC '24 Contest 1 S5 - Mock CCC 2025 Mock CCC 20p 14.2% 18
COCI '23 Contest 5 #4 Rolete COCI 15p 27.3% 18
Equivalent Addresses Uncategorized 7 32.3% 19
DMOPC '16 Contest 3 P5 - Shoe Shopping II DMOPC 15p 31.3% 19
TLE '16 Contest 5 P4 - Engineering Test TLE 12p 9.6% 19
DWITE '10 R1 #5 - Ricochet Robot DWITE 7 42.1% 19
DWITE '12 R2 #2 - Word Arithmetic DWITE 5 31.9% 19
DWITE '11 R2 #4 - Bear Trees DWITE 10 21.6% 19
DWITE '09 R5 #3 - Summary Diff DWITE 5 61.8% 19
TLE '17 Contest 4 P4 - Willson and Target Practice TLE 17p 10.3% 19
New Year's '18 P8 - Snowy Streets Seasonal 25p 11.1% 19
TLE '17 Contest 5 P6 - Circuits TLE 20p 18.5% 19
TLE '17 Contest 8 P4 - Gamma Waves TLE 20p 8.7% 19
GlobeX Cup '18 S5 - Math Bash Uncategorized 17 12.1% 19
A Combining Problem Uncategorized 20 14.8% 19
COCI '18 Contest 6 #1 Lun COCI 5p 65.5% 19
CPC '19 Contest 1 P4 - Sorting Practice Uncategorized 12p 7.4% 19
OCC '19 B6 - Fiji water Olympiads School 10p 16.5% 19
GlobeX Cup '19 S3 - Ninjaclasher's Wrath Uncategorized 12p 12.2% 19
GlobeX Cup '19 J5 - Aliens Uncategorized 15 12.6% 19
Boxdropper Uncategorized 20p 21.8% 19
ICPC NEERC 2010 K - Graph Oddity ICPC 12p 28.8% 19
SMAC 08/09 (Nov) #2 - Stock Market II Uncategorized 10p 7.6% 19
WC '17 Finals S3 - Explosive Ordinance Disposal Woburn Challenge 15p 24.4% 19
WC '01 P4 - Cool Runnings Woburn Challenge 10 24.2% 19
WC '02 P10 - The Final Battle Woburn Challenge 10 23.5% 19
Baltic OI '19 P5 - Necklace Baltic OI 17p 11.7% 19
Digger Uncategorized 15p 16.2% 19
Baltic OI '05 P4 - Ancient Manuscript Baltic OI 12 30.0% 19
COCI '12 Contest 2 #2 Krizaljka COCI 5p 51.4% 19
COCI '17 Contest 5 #5 Pictionary COCI 17p 44.0% 19
COCI '21 Contest 1 #5 Volontiranje COCI 25p 20.2% 19
Yet Another Contest 1 P5 - Hopping Kangaroos YAC 17p 12.3% 19
Baltic OI '08 P6 - Gloves Baltic OI 17p 13.0% 19
Baltic OI '10 P5 - Candies Baltic OI 17p 25.9% 19
COI '14 #2 Kovanice COCI 15p 12.1% 19
Spy Tree Uncategorized 15p 21.9% 19
DMOPC '22 Contest 3 P6 - Compressibility DMOPC 25p 8.0% 19
Mock CCC '23 1 S4 - Roger Says Yabe Mock CCC 15p 7.2% 19