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Problem Category Points AC % ▾ Users
Another Contest 6 Problem 9 - Obligatory Wood IV Problem ACC 0p 100.0% 1591
DWITE '08 R3 #5 - Now in 3D DWITE 7 78.7% 26
CCC '24 J1 - Conveyor Belt Sushi CCC 3p 77.3% 543
WC '01 P1 - The Rock Woburn Challenge 7 77.2% 24
COCI '16 Contest 7 #1 Baza COCI 5p 75.5% 34
CTU Open Contest 2017 - Chessboard Dancing ICPC 7 75.0% 6
Google Code Jam '10 Round 1A Problem C - Number Game Google Code Jam 20p 75.0% 3
Google Code Jam '22 Round 1A Problem C - Weightlifting Google Code Jam 20p 75.0% 4
Waterloo 2005 Winter E - Traditional BINGO Waterloo Local 5 75.0% 3
SAC '22 Code Challenge 3 P1 - Hair Hazards SAC Coding Challenge 3 74.7% 512
COCI '15 Contest 4 #3 Deathstar COCI 7p 74.3% 285
COCI '16 Contest 4 #2 Kartomat COCI 5p 74.2% 138
COCI '21 Contest 2 #1 Kaučuk COCI 5p 73.9% 91
Google Code Jam '21 Qualification Round Problem A - Reversort Google Code Jam 3p 73.9% 14
SAC '22 Code Challenge 5 P2 - Querying Extensions SAC Coding Challenge 5p 73.8% 280
Another Contest 4 Problem 2 - The Deutsch-Jozsa Algorithm ACC 0 73.7% 260
DWITE '09 R3 #3 - Binary Test Strings 2 DWITE 5 73.2% 27
SAC '22 Code Challenge 5 Junior P2 - Badminton Scoring SAC Coding Challenge 3 72.7% 287
CCCJQR P1 Seasonal 0 72.7% 637
WC '18 Contest 3 J3 - R Woburn Challenge 3p 72.6% 88
OTHS Coding Competition 1 (Mock CCC) J1 - Math Assistance Uncategorized 3 72.5% 348
COCI '13 Contest 5 #2 Obilazak COCI 7p 72.1% 126
Wesley's Anger Contest Reject 2 - 🥕suba WAC 3 72.1% 156
NOI '99 P5 - Optimally Connected Subset China NOI 15p 72.0% 18
DWITE '08 R4 #1 - Four player Pong with no players DWITE 7 71.9% 58
CTU Open Contest 2018 - Horsemeet ICPC 10 71.9% 13
MMM '14 H - Lift Control Uncategorized 25p 71.8% 3
Waterloo 2017 Winter A - Vera and Outfits Waterloo Local 3 71.7% 517
CPC '21 Contest 1 P0 - AQT and Alphabet Uncategorized 3 71.6% 370
DWITE '10 R4 #5 - Sleepwalking Probabilities DWITE 5 71.4% 11
Google Code Jam '08 Qualification Round Problem B - Saving the Universe Google Code Jam 5p 71.4% 4
Google Code Jam '12 Round 1A Problem A - Password Problem Google Code Jam 5p 71.4% 2
Google Code Jam '22 Round 1B Problem B - Controlled Inflation Google Code Jam 10p 71.4% 3
JOI '18 Spring Camp Day 1 P3 - Tents JOI 20p 71.1% 28
DWITE '07 R5 #3 - Parity bit DWITE 5 71.0% 102
DMOJ Capture The Flag '20 C3 - Small AES CTF 7 71.0% 21
CCC '24 S1 - Hat Circle CCC 3p 70.8% 455
GFSS Christmas Challenge P1 - Arithmetic Operators GFSSOC 3 70.8% 168
Google Code Jam '08 Round 1A Problem A - Minimum Scalar Product Google Code Jam 5p 70.6% 10
DWITE '08 R3 #1 - ASCII Rhombus DWITE 5 70.3% 47
Continuous Time Finance Uncategorized 0p 70.2% 28
COCI '06 Contest 2 #1 R2 COCI 3 70.1% 1113
DWITE '11 R3 #3 - Combo Discounts DWITE 5 70.0% 7
Baltic OI '12 P4 - Fireworks in RightAngleles Baltic OI 25p 70.0% 5
COCI '09 Contest 4 #1 Autori COCI 3 69.8% 409
COCI '12 Contest 2 #1 Mortadela COCI 3p 69.6% 62
Waterloo 2023 Winter D - Link-Cut Tree Waterloo Local 10 69.6% 14
Another Contest 6 Problem 7 - Consonant or Vowel? ACC 0p 69.4% 132
COCI '15 Contest 7 #4 Otpor COCI 12 69.2% 30
DMOJ Capture The Flag '20 R1 - Classic Java CTF 5 69.2% 25