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Problem Category Points ▴ AC % Users
Fast Factorial Calculator 3 Uncategorized 40 2.5% 8
Facebook Hacker Cup '19 Final Round P6 - Temporal Revision FHC 40p 63.6% 5
COCI '09 Contest 2 #5 Poslozi COCI 40 0.6% 3
NOI '00 P6 - Symbol Deciphering China NOI 40p 1.6% 1
NOI '08 P6 - Tournament Matching China NOI 40p 17.8% 4
NOI '07 P3 - Surrounding Battalions China NOI 40p 0.0% 0
NOI '07 P6 - Thief Catching China NOI 40p 23.7% 4
NOI '12 P3 - Magic Chessboard China NOI 40p 6.2% 10
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% 67
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
IOI '16 P3 - Shortcut (Standard I/O) IOI 40p 1.8% 7
IOI '20 P1 - Comparing Plants IOI 40p 6.4% 17
JOI '20 Spring Camp Day 2 P3 - Ruins 3 JOI 40p 33.3% 2
NOI Winter Camp '09 P1 - A Shortest Path Problem China NOI 40p 50.4% 6
NOI '20 P3 - Tears China NOI 40p 9.0% 8
DMOPC '21 Contest 5 P5 - Permutations & Primes (Hard Version) DMOPC 40p 1.5% 2
COI '19 #1 Paint COCI 40p 6.5% 8
DMOPC '21 Contest 8 P6 - Castle Building DMOPC 40p 8.7% 15
NOI '22 Multi-Provincial Team Selection P3 - Community China NOI 40p 2.9% 1
NOI '22 Multi-Provincial Team Selection P6 - MIS China NOI 40p 8.3% 2
Baltic OI '14 P4 - Demarcation Baltic OI 40p 5.3% 1
NOI '22 P3 - Count China NOI 40p 0.0% 0
NOI '22 P6 - Quadratic Integer Program China NOI 40p 0.0% 0
NOI '17 P6 - Magic China NOI 40p 40.0% 2
JOI '23 Open P2 - Cell Automaton JOI 40p 0.0% 0
IOI '23 P6 - Robot Contest IOI 40p 3.4% 2
CCO '08 P6 - Landing CCO 45 20.2% 40
Dynamic Tree Test Data Structure Tests 45 30.0% 32
Bohemian Rhaksody Uncategorized 45p 5.0% 10
IOI '09 P1 - Archery IOI 45p 13.4% 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
JOI '14 Open P3 - Space Pirate JOI 50p 1.6% 1
String Test Data Structure Tests 50 3.4% 2
Link Cut Tree Uncategorized 50 0.6% 5
NOI '10 P6 - Happily Growing China NOI 50p 2.6% 2
Rubik's Cube Solver Uncategorized 50p 0.7% 2
CCO '21 P6 - Loop Town CCO 50p 4.7% 13
Dream and the Multiverse Uncategorized 50p 5.2% 2
EGOI '23 P8 - Guessing Game EGOI 50p 4.0% 7