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Problem Category ▾ Points AC % Users
Tootsie Rolls Classics 12p 22.2% 10
Meta Classics 12p 34.1% 12
Sorting Classics 3 47.2% 3885
CEOI '14 P2 - Fangorn CEOI 20p 28.3% 18
CEOI '17 P1 - One-Way Streets CEOI 25p 22.5% 52
CEOI '17 P2 - Sure Bet CEOI 10p 35.8% 81
CEOI '17 P3 - Mousetrap CEOI 25p 14.4% 16
CEOI '17 P4 - Building Bridges CEOI 20p 20.1% 101
CEOI '17 P5 - Palindromic Partitions CEOI 15p 29.9% 99
CEOI '17 P6 - Chase CEOI 30p 18.3% 21
CEOI '18 P1 - Cloud Computing CEOI 15p 34.0% 77
CEOI '18 P2 - Global Warming CEOI 15p 30.0% 68
CEOI '18 P3 - Lottery CEOI 25p 40.0% 20
CEOI '18 P4 - Fibonacci Representations CEOI 40p 38.2% 8
CEOI '18 P5 - Toys CEOI 10p 30.8% 86
CEOI '16 P2 - Kangaroo CEOI 20p 43.5% 65
CEOI '16 P4 - Match CEOI 15p 19.4% 22
CEOI '19 P4 - Amusement Park CEOI 30p 20.8% 7
CEOI '19 P5 - Magic Tree CEOI 20p 9.3% 34
CEOI '19 P3 - Cubeword CEOI 20p 40.5% 13
CEOI '19 P2 - Dynamic Diameter CEOI 25p 11.8% 37
CEOI '19 Practice P1 - Count Squares CEOI 7p 36.5% 213
CEOI '19 Practice P2 - Separator CEOI 10p 32.9% 40
CEOI '19 Practice P3 - Tower Defense CEOI 12p 13.9% 25
CEOI '19 P1 - Building Skyscrapers CEOI 30p 6.9% 2
CEOI '16 P5 - Popeala CEOI 25p 18.6% 11
CEOI '22 P1 - Abracadabra CEOI 20p 20.6% 41
CEOI '22 P2 - Homework CEOI 15p 45.2% 70
CEOI '22 P3 - Prize CEOI 25p 6.5% 25
CEOI '22 P4 - Drawing CEOI 35p 0.9% 2
CEOI '22 P5 - Measures CEOI 20p 9.5% 28
CEOI '22 P6 - Parking CEOI 30p 6.4% 7
CEOI '09 P2 - Harbingers CEOI 25p 12.5% 24
CCO '14 P1 - Troyangles CCO 10p 37.7% 620
CCO '07 P1 - Cows CCO 10 32.1% 186
CCO '07 P2 - Snowflakes CCO 10 14.6% 990
CCO '07 P3 - Bowling for Numbers++ CCO 20p 10.5% 80
CCO '07 P4 - Gerrymandering CCO 20p 1.7% 3
CCO '07 P5 - Particle Catcher CCO 30p 16.3% 10
CCO '07 P6 - Road Construction CCO 20p 30.3% 181
CCO '08 P1 - Moving Day CCO 7p 30.5% 106
CCO '08 P4 - Herding CCO 10p 31.5% 221
CCO '08 P6 - Landing CCO 45 20.2% 40
CCO '10 P1 - Barking Dogs! CCO 10 33.9% 232
CCO '10 P2 - Tree Pruning CCO 15 29.9% 188
CCO '10 P3 - Wowow CCO 15p 23.9% 282
CCO '10 P4 - Computer Purchase Return CCO 10 39.2% 366
CCO '10 P5 - Space Miner CCO 15 31.5% 52
CCO '10 P6 - Shuffle CCO 10 35.4% 150
CCO '11 P1 - Putnam CCO 7 27.6% 108