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Problem Category Types Points AC % Users
IOI '16 P6 - Aliens (Standard I/O) IOI Dynamic Programming 30p 6.3% 67
IOI '17 P1 - Nowruz IOI Graph Theory 20p 0.3% 1
IOI '17 P2 - Wiring IOI Ad Hoc 25p 16.2% 63
IOI '17 P3 - Toy Train IOI Ad Hoc 30p 17.4% 41
IOI '17 P4 - The Big Prize IOI Interactive 20p 10.8% 60
IOI '17 P5 - Simurgh IOI Graph Theory 40p 12.7% 18
IOI '17 P6 - Ancient Books IOI Ad Hoc 25p 11.5% 32
IOI '18 P1 - Combo IOI Interactive 15p 15.6% 194
IOI '18 P2 - Seats IOI Data Structures 40p 10.9% 11
IOI '18 P3 - Werewolf IOI Ad Hoc 30p 23.5% 60
IOI '18 P4 - Mechanical Doll IOI Ad Hoc, Graph Theory 20p 23.6% 16
IOI '18 P5 - Highway Tolls IOI Graph Theory, Interactive 30p 12.0% 16
IOI '18 P6 - Meetings IOI Data Structures 35p 12.2% 11
IOI '19 P1 - Arranging Shoes IOI Data Structures, Greedy Algorithms 15p 16.7% 153
IOI '19 P2 - Split the Attractions IOI Graph Theory 40p 4.9% 26
IOI '19 P3 - Rectangles IOI Data Structures 30p 6.6% 25
IOI '19 P4 - Broken Line IOI Ad Hoc 35p 2.1% 4
IOI '19 P5 - Vision Program IOI Ad Hoc, Interactive 20p 8.2% 37
IOI '19 P6 - Sky Walking IOI Graph Theory 40p 9.5% 12
IOI '20 P1 - Comparing Plants IOI Ad Hoc, Data Structures 40p 6.3% 19
IOI '20 P2 - Connecting Supertrees IOI Graph Theory 15p 13.5% 64
IOI '20 P3 - Carnival Tickets IOI Ad Hoc, Greedy Algorithms 20p 12.3% 43
IOI '20 P4 - Packing Biscuits IOI Dynamic Programming, Simple Math 25p 14.4% 17
IOI '20 P5 - Counting Mushrooms IOI Ad Hoc, Interactive 35p 3.0% 4
IOI '20 P6 - Stations IOI Ad Hoc, Graph Theory 20p 13.8% 23
IOI '21 P1 - Distributing Candies IOI Data Structures 30p 13.6% 33
IOI '21 P2 - Keys IOI Graph Theory 25p 10.3% 14
IOI '21 P3 - Fountain Parks IOI Ad Hoc 30p 5.3% 8
IOI '21 P4 - Mutating DNA IOI Data Structures, Greedy Algorithms 12p 30.0% 85
IOI '21 P5 - Dungeons Game IOI Ad Hoc, Graph Theory 30p 6.7% 11
IOI '21 P6 - Bit Shift Registers IOI Ad Hoc, Implementation, Interactive 30p 13.5% 10
IOI '22 P1 - Catfish Farm IOI Data Structures, Dynamic Programming 25p 8.0% 54
IOI '22 P2 - Prisoner Challenge IOI Ad Hoc 25p 7.8% 26
IOI '22 P3 - Radio Towers IOI Data Structures 30p 7.0% 17
IOI '22 P4 - Digital Circuit IOI Data Structures, Graph Theory 25p 26.5% 33
IOI '22 P5 - Rarest Insects IOI Ad Hoc, Interactive 30p 5.6% 26
IOI '22 P6 - Thousands Islands IOI Ad Hoc, Graph Theory 30p 3.3% 7
IOI '23 P1 - Closing Time IOI Dynamic Programming, Graph Theory, Greedy Algorithms 25p 4.1% 24
IOI '23 P2 - Longest Trip IOI Graph Theory, Interactive 25p 3.3% 17
IOI '23 P3 - Soccer Stadium IOI Dynamic Programming 30p 4.7% 15
IOI '23 P4 - Beech Tree IOI Data Structures, Graph Theory 35p 3.2% 3
IOI '23 P5 - Overtaking IOI Data Structures 25p 5.9% 14
IOI '23 P6 - Robot Contest IOI Ad Hoc 40p 7.1% 5
IOI '24 P1 - Nile IOI Data Structures 15p 10.8% 38
IOI '24 P2 - Message IOI Interactive 40p 9.1% 12
IOI '24 P3 - Tree IOI Dynamic Programming, Graph Theory 30p 4.2% 3
IOI '24 P4 - Hieroglyphs IOI Greedy Algorithms 35p 2.1% 1
IOI '24 P5 - Mosaic IOI Data Structures 20p 10.7% 14
IOI '24 P6 - Sphinx's Riddle IOI Graph Theory, Interactive 25p 9.5% 2
IOI '94 P1 - The Triangle IOI Dynamic Programming 7p 56.5% 1520