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Problem ▴ Category Types Points AC % Users
IOI '96 P5 - Longest Prefix IOI Dynamic Programming 12 20.8% 112
IOI '98 P6 - Polygon IOI Dynamic Programming 15 32.0% 61
IOI '99 P1 - Little Shop of Flowers IOI Dynamic Programming 10 30.6% 204
JOI '13 Open P3 - Watching JOI Dynamic Programming 15p 29.7% 90
JOI '14 Open P5 - Pinball JOI Data Structures, Dynamic Programming 25p 26.3% 91
JOI '16 Open P3 - Skyscraper JOI Dynamic Programming 25p 41.9% 46
JOI '18 Spring Camp Day 1 P3 - Tents JOI Dynamic Programming, Intermediate Math 20p 71.1% 28
JOI '19 Final P3 - Collecting Stamps 3 JOI Dynamic Programming 15 25.4% 39
JOI '20 Open P3 - Power Plant JOI Dynamic Programming, Graph Theory 15p 39.8% 23
JOI '21 Open P2 - Financial Report JOI Dynamic Programming 25p 34.0% 13
JOI '22 Open P2 - Giraffes JOI Dynamic Programming 35p 0.0% 0
Knapsack 3 Uncategorized Dynamic Programming, Greedy Algorithms 10p 26.2% 251
Knapsack 4 ICPC Dynamic Programming 20 20.7% 56
Koala Ball Uncategorized Dynamic Programming, Intermediate Math 12p 32.2% 14
Longest Common Subsequence Classics Dynamic Programming 7 40.5% 836
Longest Increasing Subsequence Classics Dynamic Programming 10 23.6% 545
Longest Increasing Subsequence Uncategorized Dynamic Programming 7 29.4% 647
Magic Sequence Olympiads School Dynamic Programming 7p 64.9% 92
Max's Anger Contest Series 1 P5 - Slacking Subsequences Seasonal Data Structures, Dynamic Programming 15p 30.9% 58
Max's Anger Contest Series 2 P4 - Number Anger Seasonal Dynamic Programming 12p 37.7% 51
Maximum Sum Uncategorized Dynamic Programming 7 33.3% 787
MCIPC Contest 2 P6 - Block Tower Uncategorized Dynamic Programming, Game Theory 12p 11.6% 9
MEC '16 P3 - Getting Good at Programming Seasonal Dynamic Programming 10p 29.2% 303
MMCC '14 P1 - Tenri Uncategorized Dynamic Programming 17p 23.1% 70
MNYC '17: Removing Christmas Trees Seasonal Dynamic Programming 15p 21.6% 43
Mock CCC '15 S4 - Ice Pillars Mock CCC Dynamic Programming 15p 29.0% 106
Mock CCC '18 Contest 1 S5 - A Palindrome Problem Mock CCC Dynamic Programming 15p 8.5% 18
Mock CCC '18 Contest 2 J5/S3 - A Coloring Problem Mock CCC Dynamic Programming 10p 19.3% 56
Mock CCC '19 Contest 1 J5 - Pusheen Designs a Sushi Boat Mock CCC Dynamic Programming 7p 17.1% 235
Mock CCC '19 Contest 1 S4 - Pusheen Plays Neko Atsume Mock CCC Dynamic Programming 12 17.8% 100
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane Mock CCC Dynamic Programming 30p 5.5% 5
Mock CCC '22 Contest 2 J5 - Dominating the Olympics Mock CCC Dynamic Programming, Graph Theory 10 16.0% 76
Mock CCC '24 Contest 1 S5 - Mock CCC 2025 Mock CCC Dynamic Programming 20p 14.2% 18
Mock CCO '17 Problem 6 - Dire Consequences Mock CCO Data Structures, Dynamic Programming 20 24.2% 25
Mock CCO '18 Contest 2 Problem 1 - Victor Runs Mock CCO Dynamic Programming 15p 16.5% 44
Mock CCO '18 Contest 2 Problem 6 - Victor's Cubes Mock CCO Dynamic Programming 20p 18.3% 9
Mock CCO '18 Contest 3 Problem 5 - Roger Outsources DMOJ Work Mock CCO Dynamic Programming 15p 11.2% 8
Mock CCO '18 Contest 4 Problem 2 - Sunken Colonies Mock CCO Dynamic Programming 15p 43.5% 38
Mock CCO '18 Contest 4 Problem 5 - Spawn More Overlords Mock CCO Dynamic Programming 20p 24.8% 35
Mock CCO '19 Contest 2 Problem 6 - A Fundraising Problem Mock CCO Dynamic Programming, Graph Theory 12p 15.8% 28
Modern Art Uncategorized Dynamic Programming 17p 23.7% 15
MWC '15 #7 P3: Blue and Green MWC Dynamic Programming 15p 14.9% 37
MWC '15 #8 P3: Draw Down MWC Dynamic Programming 12p 15.8% 14
N-K Special Uncategorized Dynamic Programming 10p 8.4% 33
New Year's '15 P5 - Message to Mars Seasonal Dynamic Programming, String Algorithms 20p 14.4% 52
New Year's '15 P6 - Tiles Seasonal Dynamic Programming 20p 23.8% 26
New Year's '16 P6 - Cake Balancing Seasonal Dynamic Programming 15p 41.1% 127
New Year's '17 P6 - Christmas Cards Seasonal Dynamic Programming 15p 23.2% 128
New Year's '18 P4 - The Polar Express Seasonal Dynamic Programming 7p 24.9% 161
New Year's '19 P3 - Santa's Journey Seasonal Dynamic Programming 7 7.1% 78