Problems

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio
0-1 Sequences 64 7 11% 0.01 24 4 17%
10 Kinds of People 322 105 33% 0.02 86 61 71%
2048 191 75 39% 0.00 78 63 81%
3D Printed Statues 26 14 54% 0.00 19 14 74%
3D Printer 5 1 20% 0.00 5 1 20%
3-Sided Dice 1 0 0% -- 1 0 0%
4 thought 5 2 40% 0.00 4 2 50%
A1 Paper 44 20 45% 0.00 23 20 87%
Aaah! 28 19 68% 0.00 18 16 89%
Abandoned Animal 2 1 50% 0.07 2 1 50%
ABC 34 17 50% 0.00 18 14 78%
Ab Initio 220 42 19% 0.12 38 27 71%
Above Average 23 15 65% 0.00 16 14 88%
A+B Problem 0 0 -- -- 0 0 --
A Brief Gerrymander 0 0 -- -- 0 0 --
Abstract Art 4 3 75% 0.04 4 3 75%
Absurdistan Roads II 0 0 -- -- 0 0 --
Absurdistan Roads III 0 0 -- -- 0 0 --
Access Points 0 0 -- -- 0 0 --
A Classy Problem 942 222 24% 0.04 239 181 76%
ACM Contest Scoring 3 2 67% 0.00 3 2 67%
Adding Words 50 11 22% 0.00 11 8 73%
A Different List Game 1 0 0% -- 1 0 0%
A Different Problem 232 118 51% 0.00 111 107 96%
Adjoin the Networks 47 17 36% 0.02 18 16 89%
Administrative Difficulties 60 24 40% 0.03 25 23 92%
Advanced Causal Measurements 0 0 -- -- 0 0 --
Adventure Begins 0 0 -- -- 0 0 --
Adventures in Moving -- Part IV 48 17 35% 0.00 16 16 100%
A Favourable Ending 33 24 73% 0.00 24 24 100%
A Feast For Cats 28 19 68% 0.41 17 16 94%
Air Conditioned Minions 42 26 62% 0.00 26 25 96%
Airline Hub 44 18 41% 0.01 17 16 94%
Airport Coffee 0 0 -- -- 0 0 --
Airport Logistics 0 0 -- -- 0 0 --
Airports 0 0 -- -- 0 0 --
Akcija 133 80 60% 0.02 68 67 99%
Aladin 0 0 -- -- 0 0 --
Alchemy 0 0 -- -- 0 0 --
Alea iacta est 0 0 -- -- 0 0 --
Alice in the Digital World 46 32 70% 0.01 29 28 97%
Alien Codebreaking 0 0 -- -- 0 0 --
Alien Numbers 1 1 100% 0.26 1 1 100%
A List Game 44 21 48% 0.00 19 19 100%
All about that base 0 0 -- -- 0 0 --
All Different Directions 0 0 -- -- 0 0 --
Allergy Test 0 0 -- -- 0 0 --
All Friends 0 0 -- -- 0 0 --
All Just A Dream 52 20 38% 0.11 22 19 86%
All Pairs Shortest Path 138 40 29% 0.04 24 22 92%
Almost Perfect 5 3 60% 0.01 3 3 100%
Almost Union-Find 73 25 34% 0.08 26 22 85%
Alphabet 0 0 -- -- 0 0 --
Alphabet Spam 9 7 78% 0.00 7 7 100%
Alternative Bracket Notation 0 0 -- -- 0 0 --
Altruistic Amphibians 0 0 -- -- 0 0 --
Amanda Lounges 0 0 -- -- 0 0 --
A Mazing! 650 81 12% 0.12 48 38 79%
Amazing Adventures 0 0 -- -- 0 0 --
Amazing Race 5 2 40% 1.04 2 2 100%
Ambiguous Result 0 0 -- -- 0 0 --
Amsterdam Distance 15 11 73% 0.00 10 9 90%
A Multiplication Game 1 1 100% 0.00 1 1 100%
Anagram Counting 5 1 20% 0.02 1 1 100%
Andrew the Ant 0 0 -- -- 0 0 --
A New Alphabet 3 3 100% 0.02 3 3 100%
An I for an Eye 0 0 -- -- 0 0 --
Animal Classification 0 0 -- -- 0 0 --
An Industrial Spy 26 21 81% 0.02 21 20 95%
Another Brick in the Wall 106 66 62% 0.00 66 63 95%
Another Candies 3 1 33% 0.01 1 1 100%
Another Dice Game 0 0 -- -- 0 0 --
Another Query on Array Problem 1 1 100% 0.07 1 1 100%
Antenna Placement 37 24 65% 0.00 25 23 92%
Anthony and Cora 0 0 -- -- 0 0 --
Anthony and Diablo 1 1 100% 0.00 1 1 100%
Antiarithmetic? 0 0 -- -- 0 0 --
Ants 2 2 100% 0.03 2 2 100%
Apaxiaaaaaaaaaaaans! 264 175 66% 0.00 166 160 96%
Apostrophe Catastrophe 0 0 -- -- 0 0 --
Appalling Architecture 0 0 -- -- 0 0 --
Apparatus 0 0 -- -- 0 0 --
Apple Market 0 0 -- -- 0 0 --
Apples, Cherries, and Mangos 0 0 -- -- 0 0 --
A Prize No One Can Win 166 55 33% 0.01 45 39 87%
Aquarium Tank 0 0 -- -- 0 0 --
Aqueduct Construction 13 9 69% 0.01 9 8 89%
A Question of Ingestion 56 22 39% 0.00 22 21 95%
Arable Area 0 0 -- -- 0 0 --
Arachnophobia 0 0 -- -- 0 0 --
A Random Problem 1 0 0% -- 1 0 0%
A Rational Sequence 42 15 36% 0.00 15 11 73%
A Rational Sequence 2 350 249 71% 0.00 227 222 98%
A Rational Sequence (Take 3) 10 10 100% 0.00 10 10 100%
Arbitrage? 101 48 48% 0.04 37 36 97%
Arcade! 0 0 -- -- 0 0 --
Arctic Network 8 2 25% 0.21 4 2 50%
A Real Challenge 1 1 100% 0.00 1 1 100%
Area of Effect 0 0 -- -- 0 0 --
Are You Listening? 4 3 75% 0.00 3 3 100%