Problems

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Submissions Users
Name Total Acc. Ratio Fastest   Total Acc. Ratio Difficulty
0-1 Sequences 7160 1041 15% 0.00 1378 691 50% 6.9
2048 7098 3288 46% 0.00 3189 2715 85% 2.4
3D Printed Statues 7873 3633 46% 0.00 3369 3022 90% 2.0
3D Printer 600 115 19% 0.00 228 91 40% 8.4
3-Sided Dice 2102 187 9% 0.00 342 128 37% 8.5
4 thought 7089 2369 33% 0.00 2379 1983 83% 2.8
A1 Paper 4607 1358 29% 0.00 1339 1063 79% 3.6
Aaah! 24459 11420 47% 0.00 10242 9541 93% 1.5
ABC 10615 4795 45% 0.00 4570 4154 91% 1.7
Above Average 6466 2702 42% 0.00 2654 2393 90% 1.8
Abstract Art 239 71 30% 0.00 71 54 76% 5.4
Absurdistan Roads II 533 195 37% 0.00 191 131 69% 6.8
ACM Contest Scoring 5784 3632 63% 0.00 3207 3025 94% 1.5
Adding Words 8757 2055 23% 0.00 2021 1542 76% 4.1
A Different List Game 6262 430 7% 0.00 777 158 20% 9.2
A Different Problem 26143 9795 37% 0.00 9039 7843 87% 2.5
Adjoin the Networks 1691 456 27% 0.00 404 317 78% 5.6
Adventures in Moving -- Part IV 859 257 30% 0.00 230 197 86% 4.3
A Favourable Ending 1380 359 26% 0.00 335 251 75% 4.7
A Feast For Cats 1808 629 35% 0.00 424 356 84% 4.3
Air Conditioned Minions 4286 1191 28% 0.00 1260 942 75% 3.9
Airport Logistics 49 12 24% 0.00 18 12 67% 7.4
Akcija 6179 2730 44% 0.00 2484 2201 89% 2.0
Alien Numbers 1980 1030 52% 0.00 1000 909 91% 2.0
A List Game 7173 2099 29% 0.00 2016 1692 84% 3.0
All about that base 2627 1031 39% 0.00 1004 841 84% 2.9
All Different Directions 1057 458 43% 0.00 428 372 87% 2.7
Allergy Test 433 122 28% 0.00 135 69 51% 7.8
All Friends 831 159 19% 0.00 150 78 52% 8.8
Almost Perfect 6518 1494 23% 0.00 1607 1246 78% 3.7
Alphabet 1245 607 49% 0.00 611 516 84% 3.1
Alphabet Spam 6711 4245 63% 0.00 3405 3275 96% 1.3
Alternative Bracket Notation 203 84 41% 0.00 90 74 82% 5.5
Amsterdam Distance 1215 534 44% 0.00 575 474 82% 2.8
A Multiplication Game 626 195 31% 0.00 225 164 73% 4.9
Anagram Counting 3083 1186 38% 0.00 1144 954 83% 3.1
A New Alphabet 9547 4321 45% 0.00 4034 3734 93% 1.7
An I for an Eye 529 125 24% 0.00 145 102 70% 5.1
Another Brick in the Wall 2805 1371 49% 0.00 1334 1218 91% 1.9
Another Candies 6872 1857 27% 0.00 1945 1599 82% 2.8
Another Dice Game 89 64 72% 0.00 58 53 91% 3.3
Antenna Placement 78 38 49% 0.00 25 20 80% 6.6
Anthony and Cora 780 204 26% 0.00 244 171 70% 5.3
Anthony and Diablo 2526 875 35% 0.00 872 750 86% 2.5
Ants 3149 1390 44% 0.00 1112 975 88% 2.6
Apaxiaaaaaaaaaaaans! 11133 6798 61% 0.00 6070 5825 96% 1.3
Apostrophe Catastrophe 79 21 27% 0.00 22 15 68% 6.5
Appalling Architecture 450 128 28% 0.00 114 96 84% 3.7
A Prize No One Can Win 1394 576 41% 0.00 528 464 88% 2.4
Aquarium Tank 469 129 28% 0.00 124 97 78% 5.2
A Question of Ingestion 1173 289 25% 0.00 272 207 76% 5.8
A Random Problem 242 59 24% 0.00 56 36 64% 6.0
A Rational Sequence 1550 527 34% 0.00 549 404 74% 4.6
A Rational Sequence 2 1937 1431 74% 0.00 1270 1218 96% 1.5
A Rational Sequence (Take 3) 768 635 83% 0.00 515 495 96% 1.7
Arctic Network 1442 514 36% 0.00 458 366 80% 4.5
A Real Challenge 7174 3418 48% 0.00 3310 3094 93% 1.6
Are You Listening? 1381 380 28% 0.00 349 307 88% 2.9
Arithmetic 2760 788 29% 0.00 812 623 77% 3.8
Army Strength (Easy) 3351 1691 50% 0.00 1563 1407 90% 2.1
Around and Around We Go 51 14 27% 0.00 25 13 52% 7.6
Around the Track 265 35 13% 0.00 54 25 46% 8.2
ASCII Addition 1003 537 54% 0.00 446 421 94% 1.9
ASCII Figure Rotation 1763 541 31% 0.00 563 469 83% 3.8
As Easy as CAB 773 195 25% 0.00 186 148 80% 5.1
Aspen Avenue 1091 361 33% 0.00 269 179 67% 7.2
Association for Computing Machinery 2296 857 37% 0.00 798 698 87% 2.5
Association for Cool Machineries (Part 2) 46 27 59% 0.00 31 24 77% 5.7
Association for the Country of Mububa 1733 341 20% 0.00 409 256 63% 6.9
Association of Myths 49 24 49% 0.00 27 24 89% 4.3
A Star not a Tree? 122 25 20% 0.00 29 16 55% 8.4
Asteroids 701 125 18% 0.00 87 66 76% 5.7
Astro 248 83 33% 0.00 94 80 85% 3.8
A Towering Problem 1967 948 48% 0.00 969 874 90% 2.1
Autori 16423 10402 63% 0.00 9549 9250 97% 1.3
Average Speed 1017 317 31% 0.00 324 269 83% 3.5
A Vicious Pikeman (Easy) 1867 575 31% 0.00 479 407 85% 3.9
Avion 945 551 58% 0.00 557 533 96% 1.3
Baby Bites 2981 1558 52% 0.00 1469 1369 93% 1.6
Babylonian Numbers 848 408 48% 0.00 422 367 87% 2.3
Backspace 8421 3189 38% 0.00 2527 2138 85% 2.7
Bacon, Eggs, and Spam 3211 1868 58% 0.00 1580 1480 94% 1.6
Baggage 311 104 33% 0.00 121 87 72% 5.0
Bakice 97 39 40% 0.00 48 37 77% 6.0
Bakterije 175 20 11% 0.00 32 16 50% 8.6
Balanced Diet 890 381 43% 0.00 337 275 82% 4.3
Ball Bearings 461 168 36% 0.00 177 145 82% 3.9
Banjo 259 47 18% 0.00 39 16 41% 8.9
Bank Queue 9488 2546 27% 0.00 2301 1853 81% 4.2
Bard 1491 698 47% 0.00 626 543 87% 2.7
Barking Up The Wrong Tree 230 28 12% 0.00 30 16 53% 8.8
Base-2 Palindromes 1063 399 38% 0.00 435 329 76% 4.4
basic 113 29 26% 0.00 34 24 71% 7.3
Basin City Surveillance 794 99 12% 0.00 120 61 51% 8.6
Batmanacci 1018 319 31% 0.00 324 258 80% 4.2
Batter Up 6644 4157 63% 0.00 3843 3719 97% 1.3
Battle of Pokenom 1047 91 9% 0.00 224 79 35% 8.4
Battleship 675 134 20% 0.00 150 93 62% 6.1
Bazen 594 213 36% 0.00 223 199 89% 2.6
Beat the Spread! 2870 1026 36% 0.00 940 825 88% 2.4