Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % ▾ Users
COCI '08 Contest 3 #3 Cross COCI 10 100.0% 2
COCI '08 Contest 5 #3 Jagoda COCI 7 100.0% 5
COCI '17 Contest 4 #2 Izbori COCI 5p 100.0% 2
DWITE '08 R5 #3 - Working Directory DWITE 7 100.0% 2
DWITE '10 R1 #5 - Ricochet Robot DWITE 7 100.0% 1
DWITE '09 R7 #5 - Snapper Chain DWITE 10 100.0% 2
DWITE '12 R5 #3 - Triangle Count DWITE 7 100.0% 1
DWITE '07 R5 #4 - Train ride DWITE 7 100.0% 1
DWITE '07 R4 #3 - Don't follow my links DWITE 5 100.0% 1
DWITE '09 R5 #5 - Weak Passwords DWITE 5 100.0% 2
DWITE '10 R5 #1 - Colourful Words DWITE 5 100.0% 4
DWITE '08 R2 #3 - My drink is made of cubes DWITE 5 100.0% 2
DWITE '08 R5 #5 - Nash in Traffic DWITE 10 100.0% 1
DWITE '08 R3 #5 - Now in 3D DWITE 7 100.0% 1
DWITE '11 R4 #5 - Comet Vomit DWITE 12 100.0% 1
DWITE '12 R2 #4 - Magic Trick DWITE 7 100.0% 1
DWITE '09 R3 #3 - Binary Test Strings 2 DWITE 5 100.0% 2
DWITE '11 R3 #2 - Magical Ponds DWITE 5 100.0% 1
DWITE '12 R5 #4 - Fencing Problems DWITE 7 100.0% 1
DWITE '10 R3 #5 - E-Searching DWITE 7 100.0% 1
DWITE '10 R4 #5 - Sleepwalking Probabilities DWITE 5 100.0% 1
DWITE '12 R5 #5 - Pattern Lock DWITE 7 100.0% 1
DWITE '10 R2 #4 - Fractions to Decimal DWITE 5 100.0% 1
DWITE '10 R4 #4 - Mountain Hiking DWITE 7 100.0% 1
DWITE '10 R3 #3 - Dominos Tiling DWITE 10 100.0% 1
DWITE '07 R3 #2 - There's An Essay In My Code DWITE 5 100.0% 1
DWITE '08 R3 #3 - Unicorns and Teaspoons DWITE 5 100.0% 2
DWITE '10 R4 #1 - Future Printer DWITE 3 100.0% 2
DWITE '08 R5 #2 - Kill Dash Nine DWITE 5 100.0% 2
DWITE '11 R4 #3 - Breaking Bonds DWITE 7 100.0% 1
DWITE '07 R3 #4 - The Convex Fence Company DWITE 10 100.0% 1
DWITE '10 R5 #3 - Balancing Act DWITE 5 100.0% 1
DWITE '11 R3 #3 - Combo Discounts DWITE 5 100.0% 1
DWITE '09 R6 #3 - Bill Amendments DWITE 5 100.0% 2
DWITE '10 R4 #2 - Primal Numbers DWITE 5 100.0% 2
ICPC ECNA 2016 J - Yes, Yes, It's Nonograms ACM-ICPC 20 100.0% 1
ICPC ECNA 2000 B - Poly-polygonal Numbers ACM-ICPC 8 100.0% 1
ICPC ECNA 2000 C - Rational Approximation ACM-ICPC 12 100.0% 1
ICPC ECNA 2000 E - Checker's Check ACM-ICPC 10 100.0% 1
ICPC ECNA 2000 F - To Bet or Not To Bet ACM-ICPC 10 100.0% 1
ICPC PACNW 2016 C - Cameras ACM-ICPC 7 100.0% 1
ICPC PACNW 2016 K - Tournament Wins ACM-ICPC 12 100.0% 1
ICPC PACNW 2016 I - Postman ACM-ICPC 12 100.0% 1
ICPC PACNW 2016 J - Shopping ACM-ICPC 12 100.0% 1
ICPC PACNW 2016 L - Windy Path ACM-ICPC 15 100.0% 2
CTU Open Contest 2017 - Chessboard Dancing ACM-ICPC 7 100.0% 1
CTU Open Contest 2017 - Dark Ride With Monsters ACM-ICPC 7 100.0% 1
CTU Open Contest 2017 - Punching Power ACM-ICPC 15 100.0% 2
DWITE '09 R5 #1 - ASCII bar graphs DWITE 3 93.5% 21
DWITE '10 R2 #3 - Escape and Loot DWITE 5 90.9% 5