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Problem Category Points AC % Users ▾
CTU Open Contest 2018 - Split Game ICPC 15 42.9% 9
COCI '15 Contest 5 #5 OOP COCI 20p 5.4% 9
CPC '19 Contest 1 P5 - A Puzzlingly Puzzling Puzzle Problem 😎 Uncategorized 17p 9.1% 9
Triway Cup '19 Summer C - String Seasonal 12 12.7% 9
CCO '02 P6 - Pit Stop Strategy CCO 12 52.7% 9
OCC '19 G6 - Monkeys in a Tree Olympiads School 30p 10.0% 9
Baltic OI '06 P1 - Bitwise Expressions Baltic OI 15p 37.8% 9
Palindrome Path Olympiads School 20p 12.8% 9
JSB '19 - P4 CTF 17 23.0% 9
JSB '19 - P5 CTF 15 19.2% 9
Wesley's Anger Contest 3 Problem 7 - Mirrors WAC 25p 7.2% 9
Salsifa Hall Uncategorized 7 51.6% 9
Willie's Subtree Uncategorized 15 16.8% 9
CCO '06 P6 - Paint by Numbers CCO 30 11.0% 9
Mathtermind Uncategorized 7 42.2% 9
NOI '00 P3 - Mystery of the Lost City China NOI 17p 40.0% 9
NOI '05 P6 - Lemon Tree Under the Moon China NOI 30 15.7% 9
MMM '14 D - Kuuhaku Numbers Uncategorized 25p 8.5% 9
WC '07 P4 - Drain Game Woburn Challenge 15p 11.9% 9
DMOJ Capture The Flag '20 G4 - All the folders in the world CTF 7 14.0% 9
PEG-O-Stripes Uncategorized 15 28.2% 9
Root Solver Uncategorized 30p 4.3% 9
Facebook Hacker Cup '14 Final Round P3 - Fortunate Wheels Uncategorized 40 14.7% 9
Balkan OI '11 P2 - Decrypt Balkan OI 15p 57.9% 9
IOI '04 P2 - Hermes (Hard) IOI 20p 8.1% 9
Wesley's Anger Contest 6 Problem 8 - Crystal Disco WAC 30p 19.8% 9
DMOPC '20 Contest 3 P4 - Bob and Typography DMOPC 15p 2.5% 9
COCI '10 Contest 2 #5 Lunapark COCI 15p 24.5% 9
COCI '16 Contest 2 #5 Zamjene COCI 15p 19.3% 9
COCI '12 Contest 2 #5 Informacije COCI 15p 25.6% 9
COCI '17 Contest 3 #5 Dojave COCI 17p 22.2% 9
Calendar Contest Problem 3 — Classical Maya Seasonal 10 12.9% 9
Tree Paths Uncategorized 12p 46.3% 9
Word Counting Uncategorized 10 10.2% 9
Calendar Contest Problem 2 — Day of the Week Seasonal 10 5.7% 9
IOI '21 P5 - Dungeons Game IOI 30p 8.1% 9
DMOPC '21 Contest 1 P5 - Perfect Cross DMOPC 25p 8.6% 9
An Animal Contest 3 P7 - Monkey Lasers (Up Version) AAC 25p 23.3% 9
NOI '21 P5 - The Locked Box China NOI 25p 11.8% 9
COCI '21 Contest 1 #4 Set COCI 35p 23.7% 9
Baltic OI '09 P5 - Triangulation Baltic OI 20p 36.5% 9
COCI '21 Contest 3 #3 Akcija COCI 30p 4.9% 9
Liars Uncategorized 15p 15.8% 9
Baltic OI '15 P2 - Editor Baltic OI 25p 45.9% 9
BPC 1 S6 - Painters Uncategorized 30p 9.0% 9
COI '14 #4 Sir COCI 25p 27.9% 9
BPC 1 S4 - Binary Matrices Uncategorized 25p 12.2% 9
NOIP '99 P4 - Stamp Face Value Design China NOI 12p 10.5% 9
Adaptive Mechanized Calcium Chlorohypochlorite Uncategorized 25 15.2% 9
Baltic OI '11 P7 - Polygon Baltic OI 17p 37.7% 9