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Problem Category Points AC % ▾ Users
Another Contest 6 Problem 9 - Obligatory Wood IV Problem ACC 0p 100.0% 1614
DWITE '08 R3 #5 - Now in 3D DWITE 7 78.7% 26
CCC '24 J1 - Conveyor Belt Sushi CCC 3p 77.5% 588
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 '14 Round 1A Problem B - Full Binary Tree Google Code Jam 10p 75.0% 4
Google Code Jam '22 Round 1A Problem C - Weightlifting Google Code Jam 20p 75.0% 4
SAC '22 Code Challenge 3 P1 - Hair Hazards SAC Coding Challenge 3 74.7% 514
COCI '15 Contest 4 #3 Deathstar COCI 7p 74.3% 286
COCI '16 Contest 4 #2 Kartomat COCI 5p 74.2% 138
COCI '21 Contest 2 #1 Kaučuk COCI 5p 73.9% 91
SAC '22 Code Challenge 5 P2 - Querying Extensions SAC Coding Challenge 5p 73.8% 295
Another Contest 4 Problem 2 - The Deutsch-Jozsa Algorithm ACC 0 73.5% 261
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 72.8% 291
Google Code Jam '13 Qualification Round Problem A - Tic-Tac-Toe-Tomek Google Code Jam 7p 72.7% 6
CCCJQR P1 Seasonal 0 72.6% 640
COCI '13 Contest 5 #2 Obilazak COCI 7p 72.3% 127
WC '18 Contest 3 J3 - R Woburn Challenge 3p 72.2% 89
Wesley's Anger Contest Reject 2 - 🥕suba WAC 3 72.1% 156
NOI '99 P5 - Optimally Connected Subset China NOI 15p 72.0% 18
OTHS Coding Competition 1 (Mock CCC) J1 - Math Assistance Uncategorized 3 71.9% 354
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
Waterloo 2017 Winter A - Vera and Outfits Waterloo Local 3 71.8% 520
MMM '14 H - Lift Control Uncategorized 25p 71.8% 3
Another Contest 4 Problem 3 - An Isosceles Right Triangle ACC 0 71.6% 192
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
GFSS Christmas Challenge P1 - Arithmetic Operators GFSSOC 3 71.2% 171
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
DWITE '08 R3 #1 - ASCII Rhombus DWITE 5 70.3% 47
Continuous Time Finance Uncategorized 0p 70.2% 28
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 69.9% 413
COCI '06 Contest 2 #1 R2 COCI 3 69.9% 1115
COCI '12 Contest 2 #1 Mortadela COCI 3p 69.6% 62
Waterloo 2023 Winter D - Link-Cut Tree Waterloo Local 10 69.6% 14
Max's Anger Contest Series 2 P2 - Password Anger Seasonal 5p 69.5% 160
Another Contest 6 Problem 7 - Consonant or Vowel? ACC 0p 69.3% 132
CCC '24 S1 - Hat Circle CCC 3p 69.3% 491
PIB '20 P1 - Marcus and Head Bonks Uncategorized 3p 69.2% 307
COCI '15 Contest 7 #4 Otpor COCI 12 69.2% 30