Problems

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Submissions Users
Name Total Acc. Ratio Fastest Total Acc. Ratio   Difficulty
Air Rally 6 0 0% -- 2 0 0% 7.3
Common Ground 25 1 4% 1.86 20 1 5% 7.9
Towers of Powers 2: Power Harder 7426 341 5% 0.00 753 46 6% 9.5
Hopper 1420 18 1% 0.32 140 9 6% 9.7
Text Processor 804 26 3% 0.03 175 17 10% 9.4
The Wire Ghost 238 51 21% 0.01 26 3 12% 9.5
Between Dark and Dawn 47 1 2% 0.04 8 1 12% 8.5
Widget Tree 941 39 4% 0.11 113 15 13% 9.0
Bona Fide 19 2 11% 0.88 6 1 17% 7.8
The Bookcase 94 6 6% 0.15 35 6 17% 8.9
Ranklist Sorting 59 3 5% 0.01 17 3 18% 9.2
Old School Days 68 3 4% 0.07 16 3 19% 9.2
A Different List Game 7464 517 7% 0.00 980 189 19% 9.3
Spaghetti 51 1 2% 0.25 5 1 20% 6.7
Magical Mystery Knight's Tour 1561 59 4% 0.00 133 27 20% 9.6
Bats! 69 6 9% 0.03 24 5 21% 8.6
Aladin 860 99 12% 0.10 140 31 22% 8.7
Swap Frenzy 787 44 6% 0.00 131 30 23% 9.2
Fishing Contest 74 4 5% 0.77 17 4 24% 8.6
Guess the Digits 527 26 5% 0.01 84 22 26% 8.7
Kemija 958 184 19% 0.00 311 86 28% 8.7
Attendance 123 10 8% 0.21 36 10 28% 8.2
Contact Tracing 301 38 13% 0.01 43 12 28% 7.3
Association of Camera Makers 351 21 6% 0.46 32 9 28% 9.5
Knight Fly 203 45 22% 0.04 46 13 28% 7.4
Magical String 548 50 9% 0.01 91 26 29% 9.3
Lines Of Action 35 3 9% 0.01 7 2 29% 7.0
Bling 35 3 9% 0.25 7 2 29% 8.2
Balanced Cut 442 32 7% 0.07 63 18 29% 9.5
Alien Codebreaking 308 31 10% 3.23 56 16 29% 8.0
Final Exam 931 70 8% 1.12 121 35 29% 9.1
Div 2, Mul 2, Mul 3 99 7 7% 0.35 24 7 29% 9.1
Odometer Analysis 36 3 8% 0.00 10 3 30% 8.8
Cumulative Sums 196 37 19% 0.01 70 21 30% 8.2
Easy Probability 674 57 8% 0.00 92 28 30% 8.8
3D Printer 974 160 16% 0.00 400 122 30% 8.9
Maximum Expression 558 29 5% 0.00 77 24 31% 9.1
Satisfaction Guaranteed 341 25 7% 6.78 35 11 31% 9.6
Wooden Crates 156 12 8% 0.22 31 10 32% 9.5
Printer Scheduling 277 34 12% 0.07 61 20 33% 9.5
Easy Multiplication 410 43 10% 0.01 79 26 33% 8.0
A+B Problem 9454 933 10% 0.03 1362 449 33% 8.4
Tic Tac Toe 1174 61 5% 0.01 127 42 33% 9.0
The Last Crusade 3 1 33% 0.01 3 1 33% 5.8
Saturn Bees 37 7 19% 0.00 15 5 33% 8.5
Pipes 9 1 11% 1.13 3 1 33% 7.3
Kattis' Little Helpers 20 4 20% 0.19 12 4 33% 7.8
Connect the Dots 273 47 17% 0.00 93 31 33% 9.4
Bad Packing 418 63 15% 0.01 176 59 34% 8.1
Palindromes 494 88 18% 0.09 128 43 34% 8.7
As Easy as CAB 1333 124 9% 0.00 288 97 34% 9.1
Sky's the Limit 568 73 13% 0.01 141 48 34% 8.7
Free Desserts 276 43 16% 0.01 91 31 34% 7.7
Horse in Ambush 191 17 9% 0.00 44 15 34% 8.9
Ads 819 75 9% 0.00 149 51 34% 6.0
Magic Sequence 7833 573 7% 0.57 339 118 35% 7.1
Learning to code 766 54 7% 0.00 100 35 35% 8.1
3-Sided Dice 2872 237 8% 0.00 471 165 35% 8.7
Program 770 178 23% 0.15 284 100 35% 8.1
Condorcet 76 17 22% 0.00 31 11 35% 8.9
Drive Safely 762 30 4% 0.01 59 21 36% 9.1
Dominating Duos 489 82 17% 0.08 190 68 36% 8.0
Triangular Clouds 288 65 23% 0.11 80 29 36% 8.4
LCM Tree 127 24 19% 0.07 44 16 36% 8.7
Histogrami 109 4 4% 0.10 11 4 36% 8.3
Banjo 298 50 17% 0.00 52 19 37% 9.2
Oop 816 50 6% 0.47 93 34 37% 9.2
Bus Schedules 34 7 21% 0.16 19 7 37% 8.6
Haunted Graveyard 2282 269 12% 0.02 332 123 37% 8.0
iCar 143 19 13% 0.01 43 16 37% 8.5
Simple Polygon 414 65 16% 0.23 72 27 38% 8.6
Hiring and Firing 384 40 10% 0.05 72 27 38% 9.5
Board Covering 155 24 15% 0.00 56 21 38% 8.7
Sudoku 405 43 11% 0.02 82 31 38% 8.9
Matchings 727 118 16% 0.13 119 45 38% 7.4
Fair Divisions 233 39 17% 0.38 47 18 38% 7.9
The Ending of the End - Part 1 72 6 8% 0.56 13 5 38% 8.8
Poslozi 80 5 6% 3.36 13 5 38% 8.7
Magical Distances 53 10 19% 3.10 13 5 38% 9.0
Russian Dolls 1275 36 3% 0.00 70 27 39% 8.8
Kingdom of Kittens 715 42 6% 0.15 75 29 39% 9.2
Battle of Pokenom 1353 145 11% 0.00 289 112 39% 8.3
Ascending Photo 1114 192 17% 0.04 237 92 39% 8.6
Shovelling Snow 1273 132 10% 0.01 108 42 39% 8.5
Bus Clock Display 46 7 15% 0.02 18 7 39% 8.3
Directory Management 1955 347 18% 0.19 69 27 39% 7.5
Peak Tower 708 44 6% 0.07 51 20 39% 8.5
Ultimate Pipe Game 61 13 21% 0.05 28 11 39% 8.5
Stickers 83 31 37% 0.28 20 8 40% 7.9
NVWLS 1951 207 11% 0.20 330 132 40% 8.1
Ice Cream 61 4 7% 0.21 10 4 40% 8.2
Flatland Fidget Spinner 231 7 3% 0.09 15 6 40% 7.5
Easter Eggs 342 32 9% 0.17 35 14 40% 9.2
Climbing 36 5 14% 0.04 10 4 40% 7.4
Checkers 219 33 15% 0.00 75 30 40% 7.8
Bridge Builders 14 4 29% 0.12 10 4 40% 7.6
Firing the Phaser 276 54 20% 0.02 37 15 41% 8.7
Infection Estimation 773 60 8% 0.00 125 51 41% 8.7
Sudokunique 1323 194 15% 0.01 174 71 41% 8.8
Bitonic Ordering 264 50 19% 0.06 100 41 41% 7.8