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Problem Category Points AC % Users ▴
IOI '08 P4 - Teleporters IOI 25p 30.2% 13
ECOO '19 R2 P3 - Ribbon ECOO 15p 19.8% 13
Mock CCO '19 Contest 1 Problem 4 - A Chemistry Problem Mock CCO 15p 14.9% 13
CEOI '19 P3 - Cubeword CEOI 20p 40.5% 13
GlobeX Cup '19 S4 - Ninjaclasher's Wrath 2 Uncategorized 25p 9.7% 13
Wesley's Anger Contest 1 Problem 4 (Hard Version) - A Red-Black Tree Problem WAC 17 23.4% 13
Wesley's Anger Contest 3 Bonus Problem - Game of Death WAC 7p 38.1% 13
COCI '19 Contest 6 #4 Skandi COCI 17p 51.0% 13
NOI '09 P2 - Little G the Poet China NOI 25p 6.4% 13
WC '99 Suicidal P5 - Star Wars Woburn Challenge 15 37.7% 13
WC '18 Contest 3 S3 - Counterpicking Woburn Challenge 15p 7.8% 13
WC '15 Contest 2 S4 - The Force Awakens (Senior) Woburn Challenge 30p 6.8% 13
WC '15 Finals S3 - Driving Range Woburn Challenge 15p 19.3% 13
WC '02 P6 - Obstacles Galore Woburn Challenge 10 15.5% 13
DMOJ Capture The Flag '20 R4 - Python Cycles CTF 12 41.9% 13
Lego Uncategorized 15p 27.3% 13
Substring Scoring Uncategorized 20p 20.5% 13
Wesley's Anger Contest Reject 3 - Christmas Carols WAC 25p 14.4% 13
Riolku's Mock CCC S5 - Keen Keener Multiset Mock CCC 25p 6.6% 13
COCI '12 Contest 4 #3 Voyager COCI 7p 29.4% 13
COCI '20 Contest 4 #3 Hop COCI 25p 22.1% 13
COCI '17 Contest 7 #3 Go COCI 15p 22.7% 13
JOI '20 Spring Camp Day 4 P1 - Capital City JOI 20 47.1% 13
Another Contest 6 Problem 12 - A Pretty Standard Problem Involving Judge Kirito ACC 0p 6.9% 13
CCO '21 P6 - Loop Town CCO 50p 4.6% 13
Moses Needs Help Uncategorized 12p 16.8% 13
DMOPC '20 Contest 7 P6 - Maou and Division DMOPC 25p 11.2% 13
NOI '15 P5 - Cocktail Party China NOI 25p 42.1% 13
ICPC NWERC 2015 A - Assigning Workstations ICPC 10 31.4% 13
MALD Contest 1 P6 - Scratch Cat and Painting Uncategorized 17p 14.6% 13
COI '15 #2 Palinilap COCI 25p 20.3% 13
NOIP '99 P3 - Traveller's Budget China NOI 12p 11.4% 13
IOI '18 P4 - Mechanical Doll IOI 20p 22.6% 13
JOI '21 Open P2 - Financial Report JOI 25p 34.0% 13
Baltic OI '02 P2 - Tennis Club Baltic OI 12p 34.0% 13
JOI '19 Open P1 - Triple Jump JOI 30p 21.0% 13
NOIP '18 Junior P2 - The Big Battle China NOI 7p 33.3% 13
Max's Anger Contest Series 1 P4 - Greedily Gamboling (Hard Version) Seasonal 15p 28.7% 13
Mock CCC '23 2 S3 - Richard The Penguin Mock CCC 10p 3.9% 13
Waterloo 2023 Winter B - Laser Trap Waterloo Local 12 22.2% 13
Waterloo 2023 Winter C - Sandpile on Clique Waterloo Local 10 31.0% 13
Waterloo 2016 Fall D - Treasure Hunt Waterloo Local 5 36.8% 13
ETSR '23 Onsite Round 2 Problem 2 - Exponents Uncategorized 25p 4.1% 13
EGOI '23 P7 - Sopsug EGOI 17p 7.1% 13
IOI '23 P2 - Longest Trip IOI 25p 3.1% 13
Permutation Sorting Olympiads School 20p 15.2% 13
MWC '15 #8 P3: Draw Down MWC 12p 15.8% 14
ICPC ECNA 2016 G - That's One Hanoi-ed Teacher ICPC 15 48.4% 14
GFSSOC '17 S3 - Zhany Zhanbies GFSSOC 12 4.8% 14
DMPG '17 G5 - Vera and Pets DMOPC 15p 25.0% 14