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Problem Category Points AC % ▴ Users
IOI '19 P5 - Vision Program IOI 20p 8.2% 33
Yet Another Contest 7 P4 - Paparazzi YAC 17p 8.2% 46
DMOPC '22 Contest 2 P5 - Beautiful Bins DMOPC 30 8.2% 11
OCC '19 S5 - Partitioning Olympiads School 12p 8.2% 12
NOI '22 Multi-Provincial Team Selection P1 - Preprocessor China NOI 10p 8.2% 12
King Graff's Trip Uncategorized 15p 8.2% 47
IOI '15 P1 - Boxes with Souvenirs (Standard I/O) IOI 15p 8.2% 189
COCI '17 Contest 6 #2 Alkemija COCI 10p 8.3% 32
CCC '01 S2 - Spirals (Exact Version) CCC 7 8.3% 105
Yet Another Contest 8 P6 - Into the Woods YAC 20p 8.3% 14
NOI '11 P1 - Rabbit Farming China NOI 20p 8.3% 7
Baltic OI '11 P5 - Meetings Baltic OI 25p 8.3% 3
NOI '22 Multi-Provincial Team Selection P6 - MIS China NOI 40p 8.3% 2
Baltic OI '01 P2 - Crack the Code Baltic OI 20p 8.3% 1
Secret Room Uncategorized 25p 8.4% 26
N-K Special Uncategorized 10p 8.4% 33
NOI '01 P5 - Equation Solutions China NOI 15p 8.4% 67
JSB '19 - P1 CTF 5 8.4% 27
HHPC1 P6 - Yarn Street's Strategic Shopping Uncategorized 20p 8.4% 5
DMOPC '16 Contest 2 P5 - Tormented in Tartarus DMOPC 15p 8.4% 24
Mock CCC '21 S3 - Lexicographically Smallest Permutation Subsequence Mock CCC 10p 8.4% 80
ETSR '23 Onsite Round 2 Problem 1 - Bracket Uncategorized 12p 8.4% 26
IOI '13 P6 - Game (Standard I/O) IOI 17p 8.4% 150
COCI '17 Contest 1 #4 Hokej COCI 17 8.5% 7
Mock CCC '18 Contest 1 S5 - A Palindrome Problem Mock CCC 15p 8.5% 18
ECOO '18 R3 P2 - Vegenère ECOO 12p 8.5% 6
PIB '20 P7 - Karnaugh Maps Uncategorized 15p 8.5% 16
MMM '14 D - Kuuhaku Numbers Uncategorized 25p 8.5% 9
NOI '98 P5 - SERNET Simulation China NOI 12p 8.5% 14
King Graff's Defense Uncategorized 15p 8.5% 59
Mock ECOO '14 P1 - Do You Want to Build a Snowman? ECOO 12 8.5% 54
Find Dates Uncategorized 7 8.5% 57
A Harder Game Uncategorized 15p 8.5% 31
NOI '19 P3 - Sequence China NOI 25p 8.5% 12
ICHB Selection Contest '17 Problem 2 - Black Star's Visit Uncategorized 7p 8.5% 26
CCC '02 S4 - Bridge Crossing (Hard) CCC 20 8.5% 32
IOI '14 P4 - Gondola (Standard I/O) IOI 15 8.5% 222
DMOPC '21 Contest 1 P5 - Perfect Cross DMOPC 25p 8.6% 9
UTS Open '21 P7 - April Fools Uncategorized 30p 8.6% 10
COI '08 #1 Izbori COCI 30p 8.6% 9
Baltic OI '09 P6 - Monument Baltic OI 17 8.6% 6
All Pairs Shortest Path Classics 20p 8.7% 6
TLE '16 Contest 2 P5 - Thanksgiving Feast TLE 17p 8.7% 9
Back From Summer '19 P3: ASDFGHJKL Seasonal 10p 8.7% 61
A Simple Maximum Uncategorized 7 8.7% 28
NOI '21 P1 - Light Heavy Edges China NOI 25p 8.7% 25
WC '95 P2 - Round Numbers Woburn Challenge 12p 8.7% 38
Mock CCC '22 1 S4 - Berkeley Math Tournament Statistics Mock CCC 20p 8.7% 31
COCI '12 Contest 4 #6 Akvarij COCI 25p 8.7% 2
Fast LCA (Hard) Uncategorized 17 8.7% 7