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Problem Category Points AC % ▾ Users
COI '15 #3 Relay COCI 30p 20.7% 5
Triway Cup '18 Summer D - Demon Slayer Seasonal 20 20.7% 14
DMOPC '14 Contest 1 P5 - Surprise Teleport DMOPC 7p 20.6% 534
Google Kickstart '17 Round A Problem A - Square Counting Google Kick Start 12p 20.6% 18
DMOPC '14 Contest 6 P6 - Trip DMOPC 17p 20.6% 17
APIO '13 P2 - Toll APIO 35p 20.6% 13
Wesley's Anger Contest 1 Problem 3 - A Dynamic Tree Problem WAC 10p 20.6% 66
DMPG '16 B2 - Reward Reminiscence DMOPC 3p 20.6% 165
CEOI '22 P1 - Abracadabra CEOI 20p 20.6% 41
Good Travels Uncategorized 17 20.6% 70
An Animal Contest 4 P3 - Snowy Slopes AAC 10 20.6% 135
WC '16 Contest 4 S3 - Night Howlers Woburn Challenge 15p 20.6% 32
An Animal Contest 1 P3 - Happy Alpacas AAC 7p 20.6% 488
GFSSOC '17 J1 - Ramen and Studying GFSSOC 3p 20.6% 198
2-D Permutations Uncategorized 10p 20.6% 158
NOI '05 P2 - Maintaining a Sequence China NOI 30p 20.5% 82
CCO '04 P2 - Hockey Scores CCO 12 20.5% 66
DMOPC '16 Contest 2 P2 - Ebola Outbreak DMOPC 7p 20.5% 433
BlueBook - Pay BlueBook 3 20.5% 377
CCO '22 P4 - Bi-ing Lottery Treekets CCO 20p 20.5% 30
DMOPC '15 Contest 1 P5 - Lelei and Dragon Scales DMOPC 10p 20.5% 386
DMPG '18 G5 - Triangles DMOPC 15p 20.5% 29
ECOO '13 R3 P1 - Irregular Expressions ECOO 5p 20.5% 15
CCO '21 P3 - Through Another Maze Darkly CCO 25p 20.5% 49
Rolling Encryption Uncategorized 10 20.5% 97
BlueBook - Cost BlueBook 3 20.5% 692
Substring Scoring Uncategorized 20p 20.5% 13
CCC '22 J5 - Square Pool CCC 10p 20.5% 464
TLE '16 Contest 8 P3 - Fool's Sequence TLE 12p 20.5% 53
Brazilian IOI TST '19 Day 1 - Secret Santa Brazil OI 17p 20.5% 22
Intervals Uncategorized 10p 20.5% 110
CCC '03 S1 - Snakes and Ladders CCC 5 20.5% 3107
DWITE '07 R2 #5 - Bridges In A Graph DWITE 7 20.5% 344
Back To School '19: Beautiful_Times' Fruit Scam Seasonal 35p 20.4% 5
DMOPC '17 Contest 5 P4 - Intersecting Arcs DMOPC 17p 20.4% 63
ICPC ECNA 2005 A - ACM (ACronym Maker) ICPC 12 20.4% 28
ICPC PACNW 2016 F - Illumination ICPC 12 20.4% 23
DMOPC '19 Contest 2 P4 - A Greedy Problem DMOPC 15p 20.4% 83
Wesley's Anger Contest 3 Problem 4 - Canadian Construction Crew WAC 12p 20.4% 81
Wesley's Anger Contest 4 Problem 2 - Squirrel Election WAC 7p 20.4% 212
WC '15 Contest 4 S3 - Coded Paper Woburn Challenge 17p 20.4% 20
NOIP '07 P3 - Removing Numbers from Matrix China NOI 15p 20.4% 22
Cheerio Contest 2 P3 - Digits Uncategorized 5p 20.4% 38
Icebergs Uncategorized 12p 20.4% 47
COCI '06 Contest 6 #5 V COCI 15p 20.3% 51
VM7WC '15 #2 Gold - Uniting the Earth Empire VM7WC 12 20.3% 303
Baltic OI '19 P6 - Olympiads Baltic OI 20p 20.3% 34
DMPG '17 G4 - Timeline DMOPC 20p 20.3% 11
NOI '03 P1 - Stick Game China NOI 15p 20.3% 22
WC '17 Contest 3 J4 - Meme Generator Woburn Challenge 7 20.3% 21