Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
DWITE '12 R2 #5 - Car Hoppers DWITE 7 28.5% 46
DWITE '12 R5 #1 - Travel Time DWITE 5 45.1% 34
DWITE '12 R5 #2 - Copycat SMS DWITE 5 29.7% 134
DWITE '12 R5 #3 - Triangle Count DWITE 7 33.5% 173
DWITE '12 R5 #4 - Fencing Problems DWITE 5 18.2% 12
DWITE '12 R5 #5 - Pattern Lock DWITE 7 44.7% 23
Dynamic Sum Uncategorized 15 13.9% 17
ICPC ECNA 2000 A - Picnic Planning ICPC 15 5.1% 4
ICPC ECNA 2000 B - Poly-polygonal Numbers ICPC 12 14.7% 5
ICPC ECNA 2000 C - Rational Approximation ICPC 17 28.6% 2
ICPC ECNA 2000 D - Stacking Cubes ICPC 7 6.7% 4
ICPC ECNA 2000 E - Checker's Check ICPC 15 14.0% 5
ICPC ECNA 2000 F - To Bet or Not To Bet ICPC 10 31.6% 5
ICPC ECNA 2005 A - ACM (ACronym Maker) ICPC 12 20.4% 28
ICPC ECNA 2005 B - Countdown ICPC 10 21.7% 148
ICPC ECNA 2005 C - The Game of Efil ICPC 12 51.4% 16
ICPC ECNA 2005 D - Queens, Knights and Pawns ICPC 7 40.5% 40
ICPC ECNA 2005 E - Reliable Nets ICPC 15 21.4% 45
ICPC ECNA 2005 F - Square Count ICPC 15 35.9% 21
ICPC ECNA 2005 G - Swamp Things ICPC 7 23.5% 16
ICPC ECNA 2005 H - Two Ends ICPC 10 34.9% 157
ICPC ECNA 2016 A - Bubbly Troubly ICPC 20 50.0% 2
ICPC ECNA 2016 B - Foosball Dynasty ICPC 10 20.5% 13
ICPC ECNA 2016 C - The Key to Cryptography ICPC 7 47.0% 63
ICPC ECNA 2016 D - Lost in Translation ICPC 10 29.5% 127
ICPC ECNA 2016 E - Red Rover ICPC 7 49.0% 27
ICPC ECNA 2016 F - Removal Game ICPC 20 35.3% 23
ICPC ECNA 2016 G - That's One Hanoi-ed Teacher ICPC 15 47.8% 16
ICPC ECNA 2016 H - Vin Diagrams ICPC 15 50.0% 15
ICPC ECNA 2016 I - Waif Until Dark ICPC 15 35.6% 30
ICPC ECNA 2016 J - Yes, Yes, It's Nonograms ICPC 20 52.9% 5
ICPC ECNA 2019 C - Cheese, If You Please ICPC 25 38.5% 4
ECOO '07 R3 P1 - Sum of Primes ECOO 7 23.0% 216
ECOO '07 R3 P4 - Reverse Polish Logic ECOO 7p 12.2% 9
ECOO '12 R1 P1 - Sluggers ECOO 5p 21.6% 70
ECOO '12 R1 P2 - Decoding DNA ECOO 5p 20.3% 322
ECOO '12 R1 P3 - Triangles ECOO 5p 24.5% 31
ECOO '12 R1 P4 - Boggled ECOO 7p 20.3% 80
ECOO '12 R2 P1 - Prime Time ECOO 5p 47.6% 80
ECOO '12 R2 P2 - Password Strength ECOO 5p 14.4% 22
ECOO '12 R2 P3 - Airport Radar ECOO 10p 13.2% 18
ECOO '12 R2 P4 - Lo Shudoku ECOO 10p 68.4% 6
ECOO '12 R3 P1 - The Word Garden ECOO 5p 50.0% 11
ECOO '12 R3 P2 - Jewelry Tips ECOO 12p 44.4% 6
ECOO '12 R3 P3 - Steam Arithmetic ECOO 7p 38.4% 140
ECOO '12 R3 P4 - Splitsville ECOO 10p 75.0% 3
ECOO '13 R1 P1 - Take a Number ECOO 5p 27.0% 1321
ECOO '13 R1 P2 - The Luhn Algorithm ECOO 5p 47.1% 372
ECOO '13 R1 P3 - Hexudoku ECOO 7p 47.8% 91
ECOO '13 R1 P4 - Coupon Day ECOO 10p 34.7% 24