Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points ▴ AC % Users
DMOPC '19 Contest 4 P6 - little_prince's Specialty Tea House DMOPC 25p 5.8% 16
DMOPC '19 Contest 3 P6 - TST DMOPC 25 25.0% 14
Wesley's Anger Contest 3 Problem 7 - Mirrors WAC 25p 7.2% 9
DMOPC '19 Contest 6 P6 - Math is Difficult DMOPC 25p 16.1% 28
PIB '20 P4 - Ninjaclasher the Perfect Man Uncategorized 25p 27.4% 6
JOI '17 Final P5 - Snake Escaping JOI 25p 36.4% 14
COCI '19 Contest 3 #4 Lampice COCI 25p 11.1% 34
Wesley's Anger Contest 4 Problem 6 - Hungry Squirrels WAC 25p 15.9% 21
Wesley's Anger Contest 4 Problem 7 - Squirrel Cities WAC 25p 6.8% 30
ROI '17 P4 - Travel To Metropolis Uncategorized 25p 10.9% 6
ICPC ECNA 2019 C - Cheese, If You Please ICPC 25 30.4% 3
CEOI '16 P5 - Popeala CEOI 25p 18.6% 11
CCO '20 P4 - Travelling Salesperson CCO 25p 19.6% 92
CCO '20 P5 - Interval Collection CCO 25p 16.0% 60
CCO '06 P3 - Codec CCO 25p 0.0% 0
NOI '19 P1 - Route China NOI 25p 12.1% 51
NOI '19 P2 - Robot China NOI 25p 6.9% 7
NOI '19 P3 - Sequence China NOI 25p 8.5% 12
IOI '09 P8 - Salesman IOI 25p 16.8% 133
NOI '98 P6 - Parallel Computing China NOI 25p 0.0% 0
NOI '06 P3 - Millennium Worm China NOI 25p 15.9% 7
NOI '97 P3 - File Matching China NOI 25p 0.0% 0
NOI '08 P4 - Olympic Logistics China NOI 25p 27.0% 12
NOI '02 P6 - Robot No. M China NOI 25p 33.3% 17
NOI '08 P3 - Hiring Employees China NOI 25p 46.4% 41
NOI '11 P2 - Intelligent Car Racing China NOI 25p 12.2% 10
NOI '04 P3 - Manhattan China NOI 25p 8.9% 15
NOI '13 P3 - Little Q's Training China NOI 25p 0.0% 0
NOI '10 P2 - Super Piano China NOI 25p 15.8% 150
NOI '04 P4 - Rainfall China NOI 25p 10.2% 5
NOI '12 P2 - Highway Cycling China NOI 25p 14.0% 15
NOI '03 P6 - Wisdom Breaking Connection China NOI 25p 5.7% 5
NOI '09 P4 - Plants vs. Zombies China NOI 25p 22.3% 33
NOI '09 P2 - Little G the Poet China NOI 25p 6.6% 12
NOI '05 P3 - Wisdom Beads Game China NOI 25p 9.1% 15
NOI '11 P5 - NOI Carnival China NOI 25p 19.5% 16
NOI '09 P5 - Pipe Marbles China NOI 25p 14.8% 52
NOI '13 P2 - Tree Count China NOI 25p 12.3% 20
NOI '11 P6 - Bunny and Eggy's Game China NOI 25p 10.0% 5
Union Laser Uncategorized 25p 35.0% 3
IOI '03 P2 - Comparing Code IOI 25p 17.6% 32
MMM '14 D - Kuuhaku Numbers Uncategorized 25p 8.5% 9
MMM '14 H - Lift Control Uncategorized 25p 71.8% 3
MMM '14 F - Electricity Grid Uncategorized 25p 12.5% 4
COCI '09 Contest 5 #6 Chuck COCI 25p 14.3% 1
NOI '19 P4 - Jump China NOI 25p 13.0% 41
NOI '19 P5 - Landlords China NOI 25p 22.6% 16
NOI '19 P6 - Explore China NOI 25p 2.6% 10
WC '02 Suicidal P5 - The Mines of Moria Woburn Challenge 25 3.1% 1
WC '02 Suicidal P3 - Evil Tasks Woburn Challenge 25 33.3% 2