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Problem Category Points AC % ▴ Users
COCI '15 Contest 4 #2 Han COCI 10p 30.7% 42
Multiplication Madness Uncategorized 7p 30.8% 54
Baltic OI '04 P3 - Sequence Baltic OI 30p 30.8% 7
Google Code Jam '12 Qualification Round Problem B - Dancing With the Googlers Google Code Jam 5p 30.8% 3
CCC '10 J1 - What is n, Daddy? CCC 3 30.8% 4022
CCC '12 J1 - Speed fines are not fine! CCC 3 30.8% 5790
CEOI '18 P5 - Toys CEOI 10p 30.8% 86
APIO '08 P3 - DNA APIO 15p 30.8% 32
Security Cameras Uncategorized 20 30.8% 43
An Animal Contest 3 P1 - Monkey Shopping AAC 3 30.8% 1122
MALD Contest 1 P2 - Scratch Cat and Examinations Uncategorized 5p 30.9% 121
VM7WC '15 #3 Silver - Test Scores VM7WC 5 30.9% 374
IOI '98 P4 - Picture IOI 15p 30.9% 225
Max's Anger Contest Series 1 P5 - Slacking Subsequences Seasonal 15p 30.9% 58
COCI '15 Contest 4 #6 Endor COCI 20p 30.9% 36
CCC '07 S4 - Waterpark CCC 7 30.9% 1502
QCC P2 - Online School Uncategorized 5p 30.9% 83
COCI '18 Contest 3 #2 Pismo COCI 5p 31.0% 35
CCO '02 P5 - Connect The Campus CCO 12 31.0% 101
WC '15 Contest 4 S1 - Shootout Woburn Challenge 7p 31.0% 39
MWC '15 #1 P2: Postcard MWC 3p 31.0% 143
UACC 1 P6 - Labyrinth Treasure Uncategorized 12p 31.0% 44
NOIP '21 P1 - Saying Numbers China NOI 10p 31.0% 110
Waterloo 2023 Winter C - Sandpile on Clique Waterloo Local 10 31.0% 13
IOI '12 P3 - Crayfish Scrivener IOI 15p 31.0% 82
DWITE '02 R2 #2 - The Five M's of Stats 101 DWITE 5 31.1% 111
DWITE '09 R4 #2 - Verifying Distributed Work DWITE 3 31.1% 43
NOI '01 P3 - The Clever Typist China NOI 15p 31.1% 39
DWITE '09 R4 #3 - Moving at the same time DWITE 5 31.1% 57
TSOC '15 Contest 1 #3 - Elevators TSOC 5p 31.1% 28
Inaho VI Uncategorized 10p 31.1% 41
BSSPC '21 J2 - James and Youtube Uncategorized 3 31.1% 186
Waterloo 2017 Winter C - Vera and Mean Sorting Waterloo Local 10 31.1% 21
IOI '99 P4 - Traffic Lights IOI 15 31.1% 28
TLE '17 Contest 4 P2 - Microwave Buttons TLE 5p 31.1% 194
Valentine's Day '18 J2 - Stop the Scammer Mock CCC 5p 31.2% 120
TLE '16 Contest 7 P3 - NOR TLE 10p 31.2% 52
Amplitude Hackathon '23 Practice Problem 3 - Demo Day Demos Uncategorized 5p 31.2% 24
ECOO '19 R1 P1 - Free Shirts ECOO 5p 31.2% 902
COCI '18 Contest 2 #1 Preokret COCI 5p 31.2% 500
Yet Another Contest 8 P1 - Permutation Sorting YAC 5p 31.2% 339
Mock CCO '19 Contest 2 Problem 1 - A Dynamic Connectivity Problem Mock CCO 15p 31.3% 70
CCO '08 P3 - Mobile CCO 17p 31.3% 46
COCI '17 Contest 7 #6 Priglavci COCI 20p 31.3% 5
Baltic OI '12 P3 - Peaks Baltic OI 17p 31.3% 5
COCI '18 Contest 4 #5 Akvizna COCI 30p 31.3% 75
DMOPC '16 Contest 3 P5 - Shoe Shopping II DMOPC 15p 31.3% 19
CCC '99 S1 - Card Game CCC 5 31.3% 1000
Richmond Green P3 - ABBA Uncategorized 10p 31.3% 55
MNYC '16: King Modulus Seasonal 3p 31.3% 255