Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Types Points AC % Users
IOI '12 P6 - Jousting Tournament IOI Data Structures 17p 17.5% 19
IOI '12 P6 - Jousting Tournament (Standard I/O) IOI Data Structures 17p 17.8% 13
IOI '13 P1 - Dreaming IOI Graph Theory 15p 23.2% 235
IOI '13 P1 - Dreaming (Standard I/O) IOI Graph Theory 15p 18.5% 540
IOI '13 P2 - Art Class (Standard I/O) IOI Ad Hoc 20p 2.7% 92
IOI '13 P3 - Wombats IOI Data Structures, Graph Theory 40p 13.1% 37
IOI '13 P3 - Wombats (Standard I/O) IOI Data Structures, Graph Theory 40p 9.5% 59
IOI '13 P4 - Cave IOI Divide and Conquer, Interactive 10p 18.7% 323
IOI '13 P5 - Robots IOI Ad Hoc 20p 18.7% 96
IOI '13 P5 - Robots (Standard I/O) IOI Ad Hoc 20p 15.1% 281
IOI '13 P6 - Game IOI Data Structures 25p 9.0% 82
IOI '13 P6 - Game (Standard I/O) IOI Data Structures, Intermediate Math 17p 8.4% 151
IOI '14 P1 - Rail IOI Interactive 30p 10.6% 49
IOI '14 P2 - Wall IOI Data Structures 20p 24.9% 219
IOI '14 P2 - Wall (Standard I/O) IOI Data Structures 20p 16.1% 293
IOI '14 P3 - Game IOI Graph Theory 20p 28.1% 225
IOI '14 P4 - Gondola IOI Ad Hoc 15p 11.4% 105
IOI '14 P4 - Gondola (Standard I/O) IOI Ad Hoc 15 8.5% 224
IOI '14 P5 - Friend IOI Ad Hoc 30p 26.8% 104
IOI '14 P5 - Friend (Standard I/O) IOI Ad Hoc 30p 17.9% 195
IOI '14 P6 - Holiday IOI Ad Hoc 30p 15.5% 89
IOI '14 P6 - Holiday (Standard I/O) IOI Ad Hoc 30p 12.7% 142
IOI '14 Practice Task 1 - Square IOI Dynamic Programming 10p 49.2% 197
IOI '14 Practice Task 2 - Station IOI Greedy Algorithms 7p 52.0% 62
IOI '14 Practice Task 3 - Tile IOI Divide and Conquer 10p 28.2% 65
IOI '15 P1 - Boxes with Souvenirs IOI Ad Hoc 15p 13.9% 107
IOI '15 P1 - Boxes with Souvenirs (Standard I/O) IOI Ad Hoc 15p 8.3% 192
IOI '15 P2 - Scales IOI Ad Hoc 25p 6.8% 25
IOI '15 P3 - Teams IOI Ad Hoc 35p 8.8% 32
IOI '15 P3 - Teams (Standard I/O) IOI Ad Hoc 35p 3.6% 38
IOI '15 P4 - Horses IOI Ad Hoc 15p 11.5% 106
IOI '15 P4 - Horses (Standard I/O) IOI Ad Hoc 15p 7.6% 164
IOI '15 P5 - Sorting IOI Ad Hoc 25p 21.2% 71
IOI '15 P5 - Sorting (Standard I/O) IOI Ad Hoc 25p 18.6% 186
IOI '15 P6 - Towns IOI Ad Hoc, Graph Theory 40p 15.5% 60
IOI '16 P1 - Detecting Molecules IOI Greedy Algorithms 12p 11.9% 162
IOI '16 P1 - Detecting Molecules (Standard I/O) IOI Greedy Algorithms 12p 14.2% 236
IOI '16 P2 - Roller Coaster Railroad IOI Ad Hoc, Graph Theory 35p 43.7% 36
IOI '16 P2 - Roller Coaster Railroad (Standard I/O) IOI Ad Hoc, Graph Theory 35p 12.7% 26
IOI '16 P3 - Shortcut IOI Graph Theory 40p 8.9% 15
IOI '16 P3 - Shortcut (Standard I/O) IOI Graph Theory 40p 1.7% 7
IOI '16 P4 - Paint by Numbers IOI Ad Hoc 15p 12.4% 56
IOI '16 P4 - Paint by Numbers (Standard I/O) IOI Ad Hoc 15p 10.2% 65
IOI '16 P5 - Unscrambling a Messy Bug IOI Divide and Conquer, Interactive 20p 17.6% 66
IOI '16 P6 - Aliens IOI Dynamic Programming 30p 6.9% 84
IOI '16 P6 - Aliens (Standard I/O) IOI Dynamic Programming 30p 6.2% 66
IOI '17 P1 - Nowruz IOI Graph Theory 20p 0.3% 1
IOI '17 P2 - Wiring IOI Ad Hoc 25p 15.7% 59
IOI '17 P3 - Toy Train IOI Ad Hoc 30p 17.1% 40
IOI '17 P4 - The Big Prize IOI Interactive 20p 10.8% 60