Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Types Points AC % ▾ Users
COCI '22 Contest 5 #4 Slastičarnica COCI Dynamic Programming 15p 32.9% 46
Baltic OI '19 P2 - Nautilus Baltic OI Dynamic Programming 15p 32.8% 68
Baltic OI '12 P1 - Brackets Baltic OI Dynamic Programming 15p 32.7% 12
CCC '22 S5 - Good Influencers CCC Dynamic Programming, Graph Theory 17p 32.6% 185
COCI '07 Regional #2 Nikola COCI Dynamic Programming 10 32.5% 217
CCO Preparation Test 6 P2 - An Easy Problem Mock CCO Dynamic Programming 12p 32.5% 204
APIO '07 P3 - Zoo APIO Dynamic Programming 20p 32.3% 60
Koala Ball Uncategorized Dynamic Programming, Intermediate Math 12p 32.2% 14
NOI '97 P4 - Perfect Tour China NOI Dynamic Programming 5 32.2% 136
IOI '98 P6 - Polygon IOI Dynamic Programming 15 32.0% 61
COCI '14 Contest 1 #5 Zabava COCI Dynamic Programming 15p 31.9% 131
A Digit Problem Uncategorized Dynamic Programming 12p 31.8% 59
HCI '16 - Foodie Uncategorized Dynamic Programming 7p 31.7% 59
Bob's Farm Uncategorized Data Structures, Dynamic Programming 20p 31.7% 8
COCI '19 Contest 6 #5 Trener COCI Data Structures, Dynamic Programming, Graph Theory, String Algorithms 15p 31.6% 68
Educational DP Contest AtCoder S - Digit Sum Uncategorized Dynamic Programming, Simple Math 12 31.6% 114
CCO '04 P6 - Orko CCO Dynamic Programming 15 31.6% 42
DMPG '16 S4 - MMORPG II DMOPC Dynamic Programming, Graph Theory 12p 31.6% 41
Educational DP Contest AtCoder Y - Grid 2 Uncategorized Dynamic Programming, Intermediate Math 17 31.6% 100
DMPG '18 G4 - Variation DMOPC Dynamic Programming, Greedy Algorithms 15p 31.5% 26
COCI '07 Contest 4 #4 Muzicari COCI Dynamic Programming 10 31.4% 250
Another Random Contest 1 P3 - Physics Olympics Uncategorized Dynamic Programming 7p 31.3% 32
DMOPC '16 Contest 3 P5 - Shoe Shopping II DMOPC Dynamic Programming 15p 31.3% 19
COCI '18 Contest 4 #5 Akvizna COCI Dynamic Programming 30p 31.3% 75
Carnival Game Uncategorized Dynamic Programming 7 31.3% 58
CCO '19 P1 - Human Error CCO Brute Force, Dynamic Programming, Game Theory, Intermediate Math, Recursion, Simulation 10p 31.1% 87
Max's Anger Contest Series 1 P5 - Slacking Subsequences Seasonal Data Structures, Dynamic Programming 15p 30.9% 58
CCC '07 S4 - Waterpark CCC Dynamic Programming, Graph Theory 7 30.9% 1497
APIO '08 P3 - DNA APIO Dynamic Programming 15p 30.8% 32
CEOI '18 P5 - Toys CEOI Dynamic Programming, Intermediate Math 10p 30.8% 86
Baltic OI '04 P3 - Sequence Baltic OI Data Structures, Dynamic Programming 30p 30.8% 7
COCI '21 Contest 1 #2 Kamenčići COCI Dynamic Programming, Game Theory 10p 30.7% 66
COCI '18 Contest 6 #5 Mobitel COCI Dynamic Programming 20p 30.7% 20
IOI '99 P1 - Little Shop of Flowers IOI Dynamic Programming 10 30.6% 204
TLE '15 P6 - Rock, Paper, Scissors TLE Dynamic Programming, Graph Theory 20p 30.6% 56
UTS Open '15 #4 - Subway Uncategorized Dynamic Programming, Graph Theory 17p 30.4% 72
DMOPC '15 Contest 2 P4 - Personal Assistant DMOPC Dynamic Programming, Greedy Algorithms 12p 30.3% 245
ACM U of T Tryouts C1 E - Foxling Feeding Frenzy ICPC Dynamic Programming 7 30.2% 117
Back From Summer '19 P5: ABC123E Seasonal Dynamic Programming, Graph Theory 17p 30.1% 32
VM7WC '16 #5 Silver - Jayden Eats Chocolate VM7WC Dynamic Programming 7 30.0% 506
Bitmask Magic Uncategorized Dynamic Programming, Graph Theory 15p 30.0% 22
Waterloo 2023 Fall B - Orb Tent Waterloo Local Dynamic Programming, Geometry 17 30.0% 11
Back To School '19: Unstable Books Seasonal Dynamic Programming 15p 29.9% 32
IOI '05 P6 - Rivers IOI Dynamic Programming 20p 29.9% 283
CEOI '18 P2 - Global Warming CEOI Data Structures, Dynamic Programming 15p 29.9% 67
CCC '07 S5 - Bowling for Numbers CCC Dynamic Programming 10p 29.9% 864
DWITE '12 R2 #5 - Car Hoppers DWITE Dynamic Programming 7 29.8% 46
A Game Uncategorized Dynamic Programming, Game Theory 10 29.8% 366
JOI '13 Open P3 - Watching JOI Dynamic Programming 15p 29.7% 90
Persuasion Uncategorized Dynamic Programming 12 29.7% 24