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Problem Category Points AC % Users ▴
NOIP '18 P4 - Travel China NOI 10p 17.7% 17
DMOPC '21 Contest 4 P5 - Graph Generator DMOPC 20p 16.0% 17
Wesley's Anger Contest 6 Problem 6 (Hard Version) - Santa's Candy Factory WAC 20p 5.8% 17
COI '19 #4 Zagrade COCI 15p 21.5% 17
MALD Contest 1 P5 - Scratch Cat and Desktop Backgrounds Uncategorized 17p 9.9% 17
COI '10 #2 Telka COCI 12p 37.5% 17
Yet Another Contest 3 P3 - Topography YAC 15p 2.4% 17
DMOPC '21 Contest 8 P4 - Grid Operations DMOPC 25p 15.9% 17
Baltic OI '03 P5 - Lamps Baltic OI 15p 29.9% 17
Another Contest 9 Problem 5 - Satellite ACC 12 16.7% 17
An Animal Contest 7 P4 - Squirrel Shenanigans AAC 20 19.2% 17
Purple Lemon Uncategorized 7p 21.4% 17
MCIPC Contest 1 P5 - Rainwater Uncategorized 7 23.0% 17
COCI '22 Contest 3 #5 Skrivača COCI 20p 20.2% 17
Google Code Jam '18 Qualification Round Problem B - Trouble Sort Google Code Jam 7p 17.8% 17
APIO '23 P2 - Sequence APIO 25p 7.9% 17
DMOPC '22 Contest 5 P5 - Twos and Threes DMOPC 25 18.0% 17
CCO '23 P5 - Travelling Trader CCO 30p 7.9% 17
EGOI '23 P3 - Find the Box EGOI 17p 16.4% 17
COCI '23 Contest 3 #5 Slučajna Cesta COCI 15p 36.5% 17
COCI '14 Contest 3 #6 Kamioni COCI 30p 15.1% 18
CEOI '14 P2 - Fangorn CEOI 20p 28.3% 18
TSOC '16 Contest 2 #2 - Oh My! TSOC 10 15.3% 18
ECOO '16 R2 P4 - Hop, Skip and Jump ECOO 12p 27.9% 18
COCI '15 Contest 3 #4 Slon COCI 12p 8.9% 18
TLE '16 Contest 4 P5 - Buying Gifts TLE 17p 15.6% 18
HCI '16 - Totient Uncategorized 12p 28.8% 18
Google Kickstart '17 Round A Problem A - Square Counting Google Kick Start 12p 20.6% 18
ECOO '17 R3 P3 - Region Selection ECOO 12p 37.0% 18
ECOO '12 R2 P3 - Airport Radar ECOO 10p 14.0% 18
DWITE '10 R2 #4 - Fractions to Decimal DWITE 7 37.7% 18
DWITE '09 R5 #4 - Kind of like OCR DWITE 7 46.3% 18
DWITE '11 R1 #3 - Take a Walk DWITE 10 14.5% 18
DWITE '09 R2 #1 - Angles DWITE 5 46.6% 18
DWITE '08 R1 #5 - Moving Stuff in Boxes DWITE 7 43.5% 18
TLE '17 Contest 5 P4 - Cloning TLE 15p 6.6% 18
A New Country Uncategorized 25p 24.6% 18
Mock CCC '18 Contest 1 S5 - A Palindrome Problem Mock CCC 15p 8.5% 18
COCI '15 Contest 6 #3 Pianino COCI 10 28.9% 18
COCI '18 Contest 3 #4 NLO COCI 15 31.8% 18
COCI '18 Contest 5 #1 Titlovi COCI 5 40.8% 18
CCO '98 P5 - Text Segmentation CCO 10 23.7% 18
NOI '99 P5 - Optimally Connected Subset China NOI 15p 72.0% 18
ACSL '09 Practice P5 - Fax Uncategorized 12p 29.3% 18
SMAC 08/09 (Nov) #4 - Infinite Degrees Uncategorized 12p 25.3% 18
WC '16 Contest 4 S4 - Hopps and Wilde on the Case Woburn Challenge 15p 13.4% 18
WC '16 Contest 2 S4 - Diplomacy Woburn Challenge 17p 13.9% 18
WC '99 Suicidal P4 - Good Ethan Hunt Woburn Challenge 15 17.8% 18
A Romantic Dinner Outing Uncategorized 20 24.0% 18
Tall Uncategorized 15p 12.4% 18