Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A Rational Sequence 2 2004 1485 74% 0.00 1319 1266 96% 1.5
A Rational Sequence (Take 3) 835 677 81% 0.00 558 535 96% 1.7
Arbitrage? 2267 551 24% 0.02 360 305 85% 3.2
Arcade! 1236 225 18% 0.01 214 155 72% 5.9
Arctic Network 1518 547 36% 0.00 482 388 80% 4.5
A Real Challenge 7608 3666 48% 0.00 3460 3240 94% 1.6
Area of Effect 164 12 7% 1.93 25 10 40% 8.7
Are You Listening? 1504 414 28% 0.00 390 341 87% 2.9
Arithmetic 2876 838 29% 0.00 860 667 78% 3.5
Army Strength (Easy) 3496 1764 50% 0.00 1637 1469 90% 2.2
Army Strength (Hard) 3983 2053 52% 0.01 1518 1354 89% 2.4
Around and Around We Go 51 14 27% 0.00 25 13 52% 7.6
Around the track 63 17 27% 0.01 25 14 56% 7.2
Around the Track 274 35 13% 0.00 55 25 45% 8.7
A Royal Problem 23 6 26% 0.73 5 3 60% 7.1
Arranging Hat 324 120 37% 0.05 115 98 85% 4.7
Arranging Wine 283 81 29% 0.03 90 63 70% 4.6
Arriving on Time 393 114 29% 0.04 94 73 78% 6.8
Artur 372 84 23% 0.01 93 65 70% 5.7
Artwork 1037 370 36% 0.06 344 229 67% 6.2
A Safe Bet 268 76 28% 0.15 83 56 67% 6.9
Ascending Photo 773 115 15% 0.04 187 74 40% 8.3
ASCII Addition 1052 570 54% 0.00 473 448 95% 1.9
ASCII Figure Rotation 1797 560 31% 0.00 583 487 84% 3.6
As Easy as CAB 901 55 6% 0.00 207 43 21% 9.5
Ask Marilyn 702 74 11% 0.01 81 56 69% 4.4
Aspen Avenue 1092 362 33% 0.00 270 180 67% 7.2
Assassins 262 92 35% 0.03 81 56 69% 6.5
Assembly Line 127 50 39% 0.90 51 38 75% 5.3
Assigning Workstations 6310 1413 22% 0.05 1051 895 85% 3.5
Assistant Ranking 75 11 15% 0.09 22 9 41% 8.6
Association for Computing Machinery 2454 929 38% 0.00 864 756 88% 2.6
Association for Control Over Minds 1499 460 31% 0.03 456 371 81% 4.7
Association for Convex Main Office 641 155 24% 0.05 171 128 75% 6.5
Association for Cool Machineries (Part 1) 1010 164 16% 0.04 219 134 61% 7.2
Association for Cool Machineries (Part 2) 46 27 59% 0.00 31 24 77% 5.7
Association for the Country of Mububa 1760 347 20% 0.00 417 262 63% 6.9
Association of Camera Makers 212 20 9% 0.46 23 8 35% 9.0
Association of Cats and Magical Lights 1971 547 28% 0.18 355 285 80% 5.2
Association of Computer Maintenance 888 88 10% 0.03 107 54 50% 8.5
Association of Myths 57 28 49% 0.00 33 28 85% 4.8
A Star not a Tree? 130 28 22% 0.00 32 19 59% 7.8
Asteroid Rangers 165 55 33% 0.09 52 38 73% 7.0
Asteroids 702 125 18% 0.00 88 66 75% 6.5
Astro 254 88 35% 0.00 98 84 86% 3.8
Atlantis 448 71 16% 0.05 97 52 54% 7.1
A Towering Problem 2100 1012 48% 0.00 1030 926 90% 2.2
Attendance 20 7 35% 0.53 10 7 70% 6.5
Auto Completion 109 28 26% 0.05 36 27 75% 7.2
Automatic Trading 788 230 29% 0.03 215 142 66% 5.2
Autori 18274 11538 63% 0.00 10543 10217 97% 1.2
Average Rank 185 82 44% 0.30 66 52 79% 4.8
Average Speed 1086 336 31% 0.00 353 286 81% 3.7
A Vicious Pikeman (Easy) 1883 580 31% 0.00 483 411 85% 3.8
A Vicious Pikeman (Hard) 1211 216 18% 0.01 226 125 55% 8.4
Avion 1604 891 56% 0.00 873 834 96% 1.4
Avogadro 172 74 43% 0.02 71 56 79% 5.2
Avoiding Airports 644 119 18% 0.08 126 70 56% 6.5
Avoiding the Apocalypse 630 249 40% 0.01 192 172 90% 4.1
Avoidland 724 357 49% 0.04 221 188 85% 3.8
A Walk Through The Forest 1205 402 33% 0.12 290 235 81% 4.5
Awkward Party 1702 717 42% 0.01 623 544 87% 2.8
Azulejos 1644 354 22% 0.23 345 261 76% 4.2
BAAS 114 46 40% 0.03 48 38 79% 6.4
Babelfish 8461 3644 43% 0.02 2970 2628 88% 2.0
Baby Bites 3211 1665 52% 0.00 1573 1464 93% 1.7
Babylonian Numbers 906 443 49% 0.00 455 400 88% 2.2
Bachet's Game 1949 1051 54% 0.08 711 659 93% 2.1
Backpack Buddies 199 56 28% 0.04 49 38 78% 5.6
Backspace 8903 3376 38% 0.00 2670 2266 85% 2.6
Bacon, Eggs, and Spam 3348 1954 58% 0.00 1654 1552 94% 1.6
Baggage 312 104 33% 0.00 122 87 71% 5.5
Bag of Tiles 545 168 31% 0.10 129 93 72% 6.3
Bakice 97 39 40% 0.00 48 37 77% 6.0
Bakterije 180 21 12% 0.00 33 17 52% 8.6
Balanced Cut 95 13 14% 0.07 16 9 56% 7.9
Balanced Diet 956 411 43% 0.00 360 294 82% 4.2
Balanced Diet 580 177 31% 0.01 160 119 74% 5.5
Ball Bearings 467 173 37% 0.00 182 150 82% 3.9
Balls and Needles 340 159 47% 0.08 134 125 93% 3.4
Ball Tricks 63 3 5% 0.30 3 2 67% 7.9
Baloni 2441 820 34% 0.01 740 571 77% 4.1
Banjo 262 48 18% 0.00 41 17 41% 9.1
Bank Queue 10374 2790 27% 0.00 2503 2035 81% 3.1
Barcode 2689 353 13% 0.07 276 191 69% 6.8
Bar Code 73 7 10% 3.81 7 5 71% 6.4
Bard 1558 733 47% 0.00 664 575 87% 2.7
Barica 203 82 40% 0.02 60 46 77% 5.5
Barking Up The Wrong Tree 230 28 12% 0.00 30 16 53% 8.9
Bar Shelf 172 95 55% 0.06 41 39 95% 1.9 - 8.8
Base-2 Palindromes 1098 422 38% 0.00 459 349 76% 4.4
basic 113 29 26% 0.00 34 24 71% 7.2
BASIC Interpreter 1442 250 17% 0.01 222 145 65% 6.3
Basic Remains 451 205 45% 0.01 173 155 90% 3.4
Basin City Surveillance 813 103 13% 0.00 122 62 51% 8.7
Basketball One-on-One 855 470 55% 0.00 423 390 92% 1.4
Batmanacci 1068 338 32% 0.00 344 276 80% 4.1
Bats! 7 3 43% 0.03 6 2 33% 6.7
Batter Up 7264 4548 63% 0.00 4225 4091 97% 1.3
Battle of Pokenom 1088 98 9% 0.00 237 85 36% 8.4