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Problem Category Points AC % ▴ Users
Lyndon's Golf Contest 1 P4 - Symbolic Ruby Uncategorized 0p 13.2% 18
NOIP '07 P2 - Expanding Strings China NOI 5p 13.2% 20
COCI '06 Contest 6 #4 Kamen COCI 15p 13.2% 44
IOI '13 P3 - Wombats IOI 40p 13.2% 38
Back To School '19: Chemistry Seasonal 7p 13.2% 96
Good Celebration Uncategorized 12 13.2% 26
DMPG '17 G1 - FatalWhale and Candies DMOPC 15p 13.2% 26
TLE '17 Contest 8 P6 - Willson and Nesting Season TLE 25p 13.3% 7
DMPG '19 S5 - Secret Sort DMOPC 12p 13.3% 7
WC '96 P2 - Row and Column Woburn Challenge 7 13.3% 35
Mock CCC '24 Contest 1 J3 - RGB Words Mock CCC 5p 13.3% 187
COCI '07 Contest 1 #4 Zapis COCI 15p 13.3% 132
Singularity Cup P4 - Staircase Sum Uncategorized 17p 13.3% 65
DMPG '17 B6 - Multiply and Surrender DMOPC 7p 13.3% 68
ECOO '17 R1 P3 - Mountain View ECOO 7p 13.3% 72
DWITE '07 R1 #5 - Velociraptor Maze DWITE 7 13.3% 42
SGS Programming Challenge P1 - XOR in Computer Class Uncategorized 7p 13.3% 156
VMSS Pre-Pre-Windsor P5 - Productive Math Class Uncategorized 5 13.3% 51
LKP '18 Contest 1 P4 - Fun in Föràg Uncategorized 15p 13.3% 253
IOI '04 P5 - Farmer IOI 15p 13.3% 210
DMOPC '14 Contest 6 P3 - Streetcars DMOPC 7p 13.3% 65
Baltic OI '16 P3 - Spiral Baltic OI 30p 13.3% 4
What a Niche Uncategorized 10p 13.3% 16
Super Boggle Uncategorized 15p 13.3% 6
Baltic OI '13 P3 - Pipes Baltic OI 25p 13.3% 4
IOI '99 P6 - A Strip of Land IOI 20p 13.4% 34
IOI '15 P1 - Boxes with Souvenirs IOI 15p 13.4% 98
WC '18 Contest 2 S2 - Plutonium Woburn Challenge 12p 13.4% 73
WC '16 Contest 4 S4 - Hopps and Wilde on the Case Woburn Challenge 15p 13.4% 18
An Animal Contest 6 P3 - OAC AAC 12p 13.4% 107
IOI '09 P1 - Archery IOI 45p 13.4% 37
Mock CCC '22 1 S1 - Big Mattress Tournament Mock CCC 5p 13.4% 206
IOI '21 P1 - Distributing Candies IOI 30p 13.4% 29
IOI '05 P3 - Mountain IOI 20p 13.5% 295
CCO Preparation Test 7 P2 - XOR Path Mock CCO 20p 13.5% 16
Olympic Scoring Uncategorized 3 13.5% 127
NOI '07 P5 - Counting Spanning Trees China NOI 30p 13.5% 11
DMPG '19 S4 - Confusing Crossword Conundrum DMOPC 12p 13.5% 38
New Year's '18 P7 - Tree of Life Seasonal 20p 13.5% 32
DMOPC '16 Contest 1 P6 - Phantom Child DMOPC 20p 13.5% 9
NOIP '20 P2 - String Matching China NOI 12p 13.5% 10
DMOPC '20 Contest 5 P4 - Slacking Off DMOPC 15p 13.5% 82
DMOPC '17 Contest 5 P3 - Mimi and Primes DMOPC 7p 13.5% 421
TLE '16 Contest 8 P6 - Traffic Lights TLE 25p 13.5% 40
Deemo's Problem Uncategorized 15 13.6% 107
CCC '19 S3 - Arithmetic Square CCC 12p 13.6% 500
Confirmation Bias Uncategorized 10 13.6% 37
COCI '16 Contest 6 #5 Sirni COCI 15p 13.6% 35
Back To School '18: Function Maximization Seasonal 25p 13.6% 32
CPC '21 Contest 1 P3 - AQT and Circles Uncategorized 10p 13.6% 107