Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % ▾ Users
Baltic OI '04 P6 - Car Park Baltic OI 25p 20.0% 1
COCI '22 Contest 2 #5 Kruhologija COCI 30p 20.0% 4
Google Code Jam '08 Round 1A Problem C - Numbers Google Code Jam 20p 20.0% 3
Google Code Jam '13 Qualification Round Problem C - Treasure Google Code Jam 30p 20.0% 1
Google Code Jam '13 Qualification Round Problem D - Fair and Square Google Code Jam 12p 20.0% 2
DMOPC '22 Contest 5 P6 - Threes and Twos DMOPC 20p 20.0% 54
Yet Another Contest 7 P1 - Page Turning YAC 5p 20.0% 276
DMOPC '19 Contest 4 P3 - Taking Cues DMOPC 12p 20.0% 77
GlobeX Cup '18 S2 - Test Scores Uncategorized 7p 20.0% 111
DMOPC '21 Contest 9 P4 - Ace of Diamonds DMOPC 20p 20.0% 43
2-Dimensional Range Minimum Query Classics 17p 19.9% 133
DMPG '19 B6 - Oddity DMOPC 10 19.9% 55
CEOI '16 P4 - Match CEOI 15p 19.9% 22
Mock CCC '18 Contest 1 S4 - A Graph Problem Mock CCC 12p 19.9% 97
CCC '23 S4 - Minimum Cost Roads CCC 15p 19.9% 254
GFSSOC '15 Winter S3 - PalinDrone GFSSOC 7p 19.9% 208
Next Prime Classics 5 19.9% 2181
ECOO '19 R2 P3 - Ribbon ECOO 15p 19.8% 13
DWITE '09 R1 #5 - Running In Circles DWITE 7 19.8% 316
WC '18 Finals S3 - Screen Time Woburn Challenge 15p 19.8% 23
TLE '16 Contest 7 P4 - Abstract Problem TLE 10p 19.8% 152
RGPC '17 P3 - Intercept Uncategorized 7 19.8% 43
BSSPC '21 S1 - Lakshy and Palindromic Rectangle Uncategorized 5p 19.8% 184
Rectangle Counting Uncategorized 17p 19.8% 64
WOSS Dual Olympiad 2022 S2: Festive Card Game Seasonal 7p 19.8% 62
Wesley's Anger Contest 6 Problem 8 - Crystal Disco WAC 30p 19.8% 9
DMOPC '17 Contest 5 P2 - Mimi and Binary DMOPC 5p 19.8% 260
DMOPC '20 Contest 4 P3 - Roving Roombas DMOPC 12p 19.8% 181
DMOPC '16 Contest 4 P6 - Molly and Flying Drones DMOPC 15p 19.8% 150
Baltic OI '14 P6 - Senior Postmen Baltic OI 15p 19.8% 14
ICPC ECNA 2016 B - Foosball Dynasty ICPC 10 19.7% 12
An Animal Contest 2 P4 - Koala Gambling AAC 12 19.7% 196
Back To School '17: Wet Mud Seasonal 10p 19.7% 329
COCI '08 Contest 5 #4 Lubenica COCI 12p 19.7% 54
DMOPC '19 Contest 5 P5 - Crazy Cyclic Coincidences DMOPC 17p 19.7% 43
COCI '19 Contest 4 #2 Spiderman COCI 7p 19.7% 51
CCC '04 S4 - Space Turtle CCC 10p 19.7% 185
DWITE '08 R4 #5 - Blow your mind with 4th D DWITE 7 19.7% 13
DMOPC '20 Contest 6 P4 - Land of the Carrot Trees II DMOPC 17p 19.7% 36
APIO '16 P1 - Boat APIO 20p 19.7% 51
DMOPC '21 Contest 8 P1 - Peanut Planning DMOPC 7p 19.7% 212
Baltic OI '18 P1 - Love Polygon Baltic OI 20p 19.7% 40
CCC '07 J5 - Keep on Truckin' CCC 7 19.7% 1069
Singularity Cup P6 - Explosive Breakout Uncategorized 30p 19.7% 15
NOI '05 P4 - CongCong and KoKo China NOI 15p 19.7% 57
CCO '20 P4 - Travelling Salesperson CCO 25p 19.6% 92
CCC '10 S5 - Nutrient Tree CCC 20p 19.6% 267
TLE '16 Contest 1 P6 - A Very Normal Test TLE 25p 19.6% 22
SAC '22 Code Challenge 1 P4 - That Problem SAC Coding Challenge 7p 19.6% 75
DMOPC '17 Contest 1 P6 - Land of the Carrot Trees DMOPC 20p 19.6% 38