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Hot problems

Problem Category Points AC % Users
IOI '04 P5 - Farmer IOI 15p 13.1% 214
IOI '05 P3 - Mean Sequence IOI 12p 20.5% 292
IOI '05 P4 - Birthday IOI 12p 15.8% 146
IOI '06 P4 - The Valley of Mexico IOI 15p 22.2% 220
IOI '07 P1 - Aliens IOI 12p 14.7% 27
IOI '07 P4 - Miners IOI 15p 21.4% 453
IOI '08 P1 - Type Printer IOI 12p 19.3% 426
IOI '09 P2 - Hiring IOI 12p 32.0% 267
IOI '09 P6 - Mecho IOI 15 14.7% 331
IOI '09 Practice Task 3 - Museum IOI 15p 46.6% 74
IOI '10 P3 - Quality of Living IOI 15p 28.8% 163
IOI '10 P3 - Quality of Living (Standard I/O) IOI 15p 28.2% 351
IOI '11 P3 - Rice Hub IOI 15p 18.5% 138
IOI '11 P3 - Rice Hub (Standard I/O) IOI 15p 19.4% 507
IOI '12 P3 - Crayfish Scrivener IOI 15p 31.1% 85
IOI '12 P3 - Crayfish Scrivener (Standard I/O) IOI 15p 16.6% 277
IOI '13 P1 - Dreaming IOI 15p 23.2% 237
IOI '13 P1 - Dreaming (Standard I/O) IOI 15p 18.5% 543
IOI '14 P4 - Gondola IOI 15p 11.4% 107
IOI '14 P4 - Gondola (Standard I/O) IOI 15 8.5% 224
IOI '15 P1 - Boxes with Souvenirs IOI 15p 13.8% 108
IOI '15 P1 - Boxes with Souvenirs (Standard I/O) IOI 15p 8.4% 194
IOI '15 P4 - Horses IOI 15p 11.5% 106
IOI '15 P4 - Horses (Standard I/O) IOI 15p 7.6% 164
IOI '16 P1 - Detecting Molecules IOI 12p 11.9% 165
IOI '16 P1 - Detecting Molecules (Standard I/O) IOI 12p 14.2% 241
IOI '16 P4 - Paint by Numbers IOI 15p 12.5% 57
IOI '16 P4 - Paint by Numbers (Standard I/O) IOI 15p 10.2% 65
IOI '18 P1 - Combo IOI 15p 15.6% 194
IOI '19 P1 - Arranging Shoes IOI 15p 16.7% 153
IOI '20 P2 - Connecting Supertrees IOI 15p 13.5% 64
IOI '21 P4 - Mutating DNA IOI 12p 30.0% 85
IOI '24 P1 - Nile IOI 15p 10.5% 36
IOI '95 P1 - Packing Rectangles IOI 15p 44.9% 27
IOI '95 P2 - Shopping Offers IOI 15p 27.5% 42
IOI '95 P4 - Letter Game IOI 15p 27.1% 35
IOI '95 P5 - Street Race IOI 15p 24.5% 40
IOI '95 Practice Task 1 - Fence Factory IOI 15p 21.7% 10
IOI '95 Practice Task 2 - Word Chains IOI 12 44.2% 55
IOI '95 Practice Task 3 - Bar Codes IOI 12p 36.6% 24
IOI '96 P3 - Network of Schools IOI 12p 24.2% 86
IOI '96 P5 - Longest Prefix IOI 12 21.1% 114
IOI '98 P2 - Starry Night IOI 15 35.1% 30
IOI '98 P3 - Party Lamps IOI 12p 34.2% 171
IOI '98 P4 - Picture IOI 15p 31.1% 227
IOI '98 P5 - Camelot IOI 15p 40.9% 52
IOI '98 P6 - Polygon IOI 15 32.2% 63
IOI '99 P4 - Traffic Lights IOI 15 31.4% 30
IOI '99 P5 - Flatten IOI 15p 21.6% 16
JOI '13 Open P3 - Watching JOI 15p 30.3% 98