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Problem Category Points ▾ AC % Users
JOI '14 Open P3 - Space Pirate JOI 50p 1.7% 1
String Test Data Structure Tests 50 4.0% 2
Fast Factorial Calculator 3 Uncategorized 50 2.2% 8
Link Cut Tree Uncategorized 50 0.4% 4
NOI '10 P6 - Happily Growing China NOI 50p 2.3% 1
Rubik's Cube Solver Uncategorized 50p 0.7% 2
CCO '21 P6 - Loop Town CCO 50p 4.0% 10
Dream and the Multiverse Uncategorized 50p 12.5% 1
CCO '08 P6 - Landing CCO 45 20.0% 37
Dynamic Tree Test Data Structure Tests 45 29.9% 30
Bohemian Rhaksody Uncategorized 45p 5.1% 10
IOI '09 P1 - Archery IOI 45p 13.3% 37
NOI '20 P6 - Road China NOI 45p 3.3% 1
A Math Contest P17 - Heatwaves Uncategorized 45 36.4% 3
JOI '21 Spring Camp Day 1 P1 - Aerobatics JOI 45p 0.0% 0
APIO '23 P3 - Alice, Bob, and Circuit APIO 45p 0.0% 0
Phantom's Python Challenge Uncategorized 40p 0.5% 5
COCI '14 Contest 5 #6 Divljak COCI 40p 16.6% 28
UTS Open '15 #6 - Tetrahedra Uncategorized 40p 31.4% 24
Mock CCC '15 S5 - Kongou Mock CCC 40p 3.9% 13
CCO '11 P5 - Fixing Disks CCO 40p 7.7% 6
CCO '14 P6 - Gates CCO 40p 9.2% 13
IOI '15 P6 - Towns IOI 40p 16.4% 56
IOI '13 P3 - Wombats IOI 40p 14.3% 40
IOI '16 P3 - Shortcut IOI 40p 9.9% 14
APIO '16 P2 - Fireworks APIO 40p 31.7% 45
APIO '12 P3 - Kunai APIO 40p 12.2% 23
IOI '17 P5 - Simurgh IOI 40p 12.2% 16
Baltic OI '07 P2 - Sorting Baltic OI 40p 11.0% 7
IOI '11 P5 - Dancing Elephants IOI 40p 12.6% 40
IOI '18 P2 - Seats IOI 40p 55.6% 7
TLE 2018-19 P5 - Pure Functional Programming Seasonal 40p 2.6% 2
TLE 2018-19 P6 - The Final Test Seasonal 40p 0.6% 1
IOI '08 P6 - Pyramid Base IOI 40p 11.8% 4
CEOI '18 P4 - Fibonacci Representations CEOI 40p 38.2% 8
ACM-ICPC World Finals 2007 Problem J - Tunnels ICPC 40 20.3% 10
IOI '19 P2 - Split the Attractions IOI 40p 6.4% 26
IOI '19 P6 - Sky Walking IOI 40p 13.2% 11
Facebook Hacker Cup '19 Final Round P6 - Temporal Revision FHC 40p 70.0% 5
COCI '09 Contest 2 #5 Poslozi COCI 40 0.5% 2
NOI '00 P6 - Symbol Deciphering China NOI 40p 1.6% 1
NOI '08 P6 - Tournament Matching China NOI 40p 20.0% 3
NOI '07 P3 - Surrounding Battalions China NOI 40p 0.0% 0
NOI '07 P6 - Thief Catching China NOI 40p 25.2% 4
NOI '12 P3 - Magic Chessboard China NOI 40p 6.0% 9
NOI '12 P6 - Triple Town China NOI 40p 0.0% 0
MMM '14 G - Campfire Cooking Uncategorized 40p 2.7% 3
IOI '07 P6 - Training IOI 40p 27.9% 62
Facebook Hacker Cup '14 Final Round P3 - Fortunate Wheels Uncategorized 40 14.7% 9
IOI '13 P3 - Wombats (Standard I/O) IOI 40p 9.5% 60