Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
APIO '12 P1 - Dispatching APIO 17p 25.4% 127
APIO '12 P2 - Guard APIO 20p 15.1% 25
APIO '12 P3 - Kunai APIO 40p 10.8% 17
APIO '13 P1 - Robots APIO 20p 8.4% 8
APIO '13 P2 - Toll APIO 35p 18.4% 6
APIO '14 P1 - Palindromes APIO 25p 18.2% 29
APIO '14 P2 - Split the Sequence APIO 25p 13.6% 70
APIO '14 P3 - Beads and Wires APIO 25p 23.6% 13
APIO '15 P1 - Bali Sculptures APIO 20p 22.9% 59
APIO '15 P2 - Jakarta Skyscrapers APIO 20p 9.4% 74
APIO '15 P3 - Palembang Bridges APIO 20p 9.2% 27
APIO '16 P1 - Boat APIO 20p 18.2% 32
APIO '16 P2 - Fireworks APIO 40p 34.4% 20
APIO '17 P1 - Land of the Rainbow Gold APIO 30p 9.3% 3
APIO '17 P2 - Travelling Merchant APIO 20p 26.2% 11
APIO '18 P1 - New Home APIO 25 5.5% 5
APIO '18 P2 - Circle Selection APIO 25p 6.9% 2
APIO '18 P3 - Duathlon APIO 20 32.1% 22
APIO '19 P1 - Strange Device APIO 20 45.2% 22
APIO '19 P2 - Bridges APIO 35p 11.6% 14
APIO '19 P3 - Street Lamps APIO 35p 12.3% 17
A Plus B Fun Math 3p 46.4% 4870
A Plus B (Hard) Fun Math 15p 10.5% 292
All Pairs Shortest Path Classics 20p 9.9% 2
Art Academy 0: Prologue Uncategorized 3p 39.6% 177
Art Academy Uncategorized 5p 36.7% 29
Art Academy II: The Grand Escape Uncategorized 7p 22.2% 49
Art Academy III: Sabotage Uncategorized 20p 11.8% 5
Art Academy IV: Alice's Blazing Fury Uncategorized 30p 13.2% 4
Art Academy V: Ruin Uncategorized 12p 31.7% 34
Art Academy VI: The Last Stand Uncategorized 12p 20.2% 21
Art Academy VII: A Mysterious Object Uncategorized 12p 39.9% 37
A Simple Mean Fun Math 7 11.7% 27
A Simple Maximum Fun Math 7 12.3% 22
A Simple Mode Fun Math 7p 8.9% 14
A Simple Minus Fun Math 10 28.9% 14
A Simple Multiplication Fun Math 12 12.0% 11
A Sum Problem Olympiads School 12p 14.5% 47
Athena on Zanzibar Island Olympiads School 12p 6.7% 20
A Times B Fun Math 20p 14.2% 82
Air Uncategorized 7 19.2% 39
Balance Uncategorized 10 44.0% 143
Change Uncategorized 7 41.6% 34
Earth Uncategorized 3 33.6% 170
Fire Uncategorized 5 29.4% 106
Spirits Uncategorized 10 8.1% 10
Water Uncategorized 3 59.9% 391
Adding Reversed Numbers Uncategorized 5 56.1% 305
Palindromic Integer Partition Uncategorized 5p 32.5% 99
Bad Paths Fun Math 12p 20.2% 37