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Problem Category Points AC % Users ▴
DMOPC '17 Contest 1 P6 - Land of the Carrot Trees DMOPC 20p 19.6% 38
DMOPC '17 Contest 4 P5 - Revised IOI DMOPC 12 28.8% 38
DMOPC '20 Contest 7 P5 - Mayors and Tolls DMOPC 20 40.3% 39
DMOPC '13 Contest 1 P5 - Math on Titan DMOPC 15p 17.0% 40
DMOPC '19 Contest 4 P5 - Financial Trouble DMOPC 17p 11.4% 40
DMOPC '21 Contest 4 P4 - Christmas Graph DMOPC 17p 32.4% 40
DMOPC '20 Contest 5 P3 - Bottom Row DMOPC 15p 6.7% 41
DMOPC '22 Contest 4 P3 - K-Knight DMOPC 15 15.9% 42
DMOPC '19 Contest 5 P5 - Crazy Cyclic Coincidences DMOPC 17p 19.7% 43
DMOPC '21 Contest 9 P4 - Ace of Diamonds DMOPC 20p 20.0% 43
DMOPC '19 Contest 1 P3 - Simple Math DMOPC 12 18.4% 45
DMOPC '21 Contest 1 P4 - Uneven Forest DMOPC 20 27.7% 48
DMOPC '18 Contest 2 P5 - Another Sequence Problem DMOPC 15p 12.7% 49
DMOPC '15 Contest 7 P6 - A Very Very Original Problem DMOPC 20p 27.8% 52
DMOPC '17 Contest 5 P5 - XOR Bridges DMOPC 15p 18.7% 52
DMOPC '19 Contest 7 P6 - Bob Equilibrium DMOPC 30p 18.6% 52
DMOPC '18 Contest 4 P5 - Dr. Henri and Wormholes DMOPC 25p 18.5% 53
DMOPC '21 Contest 3 P3 - Hopping Frogs DMOPC 15p 21.9% 53
DMOPC '20 Contest 7 P4 - Mimi and Carrots II DMOPC 17p 24.1% 54
DMOPC '22 Contest 5 P6 - Threes and Twos DMOPC 20p 20.0% 54
DMOPC '23 Contest 1 P4 - Wandering Walk DMOPC 17p 6.4% 54
DMOPC '18 Contest 3 P3 - Bob and Math Class DMOPC 10p 15.1% 55
DMOPC '18 Contest 6 P2 - Enantiomers DMOPC 7 16.9% 55
DMOPC '20 Contest 4 P4 - Javelin Throwing DMOPC 15p 20.2% 56
DMOPC '21 Contest 2 P4 - Water Mechanics DMOPC 15p 23.4% 56
DMOPC '18 Contest 5 P5 - A Hat Problem DMOPC 20p 22.3% 57
DMOPC '20 Contest 7 P2 - Alice and Tiles DMOPC 10p 19.1% 57
DMOPC '22 Contest 3 P3 - Ina's Takodachis DMOPC 15p 5.7% 58
DMOPC '18 Contest 6 P5 - Quadrat Sampling DMOPC 20p 15.2% 60
DMOPC '20 Contest 3 P3 - A Ring of Buckets DMOPC 12p 7.0% 60
DMOPC '14 Exam Time P6 - Math Homework DMOPC 15p 24.3% 61
DMOPC '15 Contest 7 P5 - Ariadne's Thread DMOPC 17p 21.0% 62
DMOPC '14 Contest 7 P5 - Aurora DMOPC 10p 29.9% 63
DMOPC '17 Contest 5 P4 - Intersecting Arcs DMOPC 17p 20.4% 63
DMOPC '22 Contest 1 P4 - Card Game DMOPC 12p 15.9% 63
DMOPC '14 Contest 6 P3 - Streetcars DMOPC 7p 13.3% 65
DMOPC '20 Contest 2 P4 - Hungry Pigeons DMOPC 15p 11.0% 66
DMOPC '20 Contest 3 P5 - Tower of Power DMOPC 25p 6.6% 67
DMOPC '16 Contest 1 P4 - Tree Appraisal DMOPC 15p 36.7% 68
DMOPC '22 Contest 5 P3 - Sorted XOR DMOPC 12p 15.9% 68
DMOPC '15 Contest 2 P6 - Manhattan Magnets DMOPC 17p 17.4% 69
DMOPC '15 Contest 2 P5 - Sysadmin DMOPC 15p 12.0% 69
DMOPC '15 Contest 5 P4 - Steins;Number DMOPC 12p 20.3% 70
DMOPC '21 Contest 5 P4 - Permutations & Primes DMOPC 17p 11.6% 70
DMOPC '15 Contest 6 P6 - Graf Zeppelin DMOPC 7p 13.9% 71
DMOPC '16 Contest 1 P2 - Lines DMOPC 7p 9.8% 71
DMOPC '18 Contest 5 P4 - An Art Gallery Problem DMOPC 12p 13.2% 73
DMOPC '21 Contest 10 P3 - Peculiar Reflections DMOPC 12p 14.2% 75
DMOPC '19 Contest 4 P3 - Taking Cues DMOPC 12p 20.0% 77
DMOPC '21 Contest 2 P3 - Divisions DMOPC 12p 8.8% 78