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Problem Category Points AC % ▴ Users
IOI '04 P1 - Artemis IOI 15p 6.9% 68
DMOPC '15 Contest 6 P2 - Tilt DMOPC 5p 6.9% 85
IOI '19 P3 - Rectangles IOI 30p 6.9% 25
CEOI '19 P1 - Building Skyscrapers CEOI 30p 6.9% 2
Prime Bag Uncategorized 20p 6.9% 17
Linked List Uncategorized 20p 6.9% 26
Another Contest 6 Problem 12 - A Pretty Standard Problem Involving Judge Kirito ACC 0p 6.9% 13
NOI '13 P1 - Inner Product China NOI 20p 7.0% 20
Baltic OI '05 P6 - Polygon Baltic OI 20 7.0% 6
Spring Coding Bowl '22 P2 - Chicken Strips Uncategorized 5p 7.0% 34
DMOPC '20 Contest 3 P3 - A Ring of Buckets DMOPC 12p 7.0% 60
Halloween '14 P4 - Fox Girls Seasonal 20p 7.0% 54
EGOI '22 P3 - Social Engineering EGOI 15p 7.1% 16
Yet Another Contest 8 P3 - Herobrine YAC 12p 7.1% 64
IOI '16 P6 - Aliens IOI 30p 7.1% 80
New Year's '19 P3 - Santa's Journey Seasonal 7 7.1% 78
DMPG '16 G5 - Continuation Passing DMOPC 20p 7.1% 2
COCI '16 Contest 5 #6 Strelice COCI 20p 7.1% 6
DMOPC '21 Contest 7 P4 - Rocket Race DMOPC 17p 7.1% 34
An Animal Contest 5 P4 - Number Game AAC 12p 7.2% 42
Mock CCC '23 1 S4 - Roger Says Yabe Mock CCC 15p 7.2% 19
IOI '22 P3 - Radio Towers IOI 30p 7.2% 15
Wesley's Anger Contest 3 Problem 7 - Mirrors WAC 25p 7.2% 9
BPC 1 S5 - Temple Uncategorized 25p 7.2% 10
CPC '21 Contest 1 P6 - AQT's Break Time is Over Uncategorized 20p 7.2% 26
NOI '09 P6 - Tracing China NOI 20p 7.2% 3
TLE '17 Contest 2 P3 - Willson and Migration TLE 10p 7.2% 31
Back To School '19: A Circular Game Seasonal 10p 7.3% 43
OCC '19 G2 - A Guessing Game Olympiads School 25p 7.3% 6
DMOPC '17 Contest 3 P6 - Mimi and Scarf DMOPC 25p 7.3% 15
DMOPC '22 Contest 3 P5 - Alice Rebalancing DMOPC 20p 7.3% 28
CCO Preparation Test 5 P2 - Corporative Network Mock CCO 15 7.3% 13
An Animal Contest 6 P4 - Buffet AAC 20p 7.4% 29
COCI '10 Contest 6 #4 Abeceda COCI 10p 7.4% 21
GlobeX Cup '19 S5 - Alien Navigation Uncategorized 20p 7.4% 16
CPC '19 Contest 1 P4 - Sorting Practice Uncategorized 12p 7.4% 19
CCO '18 P5 - Boring Lectures (Online Version) CCO 30p 7.4% 50
Wesley's Anger Contest 4 Problem 5 - Time Travelling Squirrels WAC 30p 7.4% 8
COCI '10 Contest 5 #6 Slika COCI 20p 7.4% 2
NOI '16 P2 - Grid China NOI 25p 7.4% 6
CCO '22 P3 - Double Attendance CCO 25p 7.4% 28
Mock CCC '22 2 S4 - Kaguya Wants to Build a Great Wall Mock CCC 15p 7.5% 8
APIO '09 P3 - The Great ATM Robbery APIO 20p 7.5% 126
Wesley's Anger Contest 3 Problem 6 - Zeyu's Sadness Contest 1 WAC 30p 7.5% 8
COCI '23 Contest 4 #5 Roboti COCI 17p 7.5% 7
Mock CCC '19 Contest 2 J5 - Tudor Drinks Even More Tea Mock CCC 10p 7.5% 36
DMPG '19 G1 - Camera Calibration Challenge DMOPC 12p 7.5% 20
IOI '15 P4 - Horses (Standard I/O) IOI 15p 7.6% 162
COCI '07 Contest 5 #6 Baza COCI 25 7.6% 61
Wesley's Anger Contest 5 Problem 5 - A Squirrel's Life WAC 25p 7.6% 12