Problems

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Submissions Users
Name Total Acc. Ratio Fastest   Total Acc. Ratio Difficulty
0-1 Sequences 10313 1554 15% 0.00 2047 1063 52% 5.9
2048 9728 4488 46% 0.00 4308 3699 86% 2.3
3D Printed Statues 12647 5826 46% 0.00 5418 4864 90% 1.9
3D Printer 923 151 16% 0.00 376 115 31% 8.8
3-Sided Dice 2703 218 8% 0.00 438 155 35% 8.7
4 thought 11079 3749 34% 0.00 3647 3078 84% 2.4
A1 Paper 6238 1877 30% 0.00 1849 1478 80% 3.4
Aaah! 32950 15342 47% 0.00 13756 12846 93% 1.5
ABC 17077 7818 46% 0.00 7362 6684 91% 1.7
Above Average 11401 4725 41% 0.00 4548 4077 90% 2.0
Abstract Art 419 134 32% 0.00 112 86 77% 5.7
Abstract Painting 601 243 40% 0.00 209 165 79% 4.5
Absurdistan Roads II 672 229 34% 0.00 226 151 67% 6.9
ACM Contest Scoring 7850 4908 63% 0.00 4377 4135 94% 1.4
Adding Words 12740 3123 25% 0.00 3002 2346 78% 3.7
A Different List Game 7404 512 7% 0.00 956 186 19% 9.2
A Different Problem 37110 13735 37% 0.00 12564 10892 87% 2.2
Adjoin the Networks 2316 614 27% 0.00 519 413 80% 5.6
Ads 787 70 9% 0.00 135 47 35% 6.5
Adventures in Moving -- Part IV 1645 363 22% 0.00 315 263 83% 4.5
A Favourable Ending 1860 504 27% 0.00 471 368 78% 4.4
A Feast For Cats 3046 1150 38% 0.00 821 702 86% 3.8
Air Conditioned Minions 6113 1771 29% 0.00 1846 1410 76% 4.1
Airport Logistics 68 16 24% 0.00 23 16 70% 7.0
Akcija 8779 3962 45% 0.00 3606 3223 89% 2.0
Alex and Barb 811 279 34% 0.00 319 249 78% 3.1
Alien Numbers 2762 1451 53% 0.00 1418 1297 91% 1.9
A List Game 10105 3073 30% 0.00 2938 2496 85% 2.5
All about that base 3081 1232 40% 0.00 1198 1014 85% 2.9
All Different Directions 1587 721 45% 0.00 682 606 89% 2.5
Allergy Test 618 156 25% 0.00 197 97 49% 7.9
All Friends 1105 210 19% 0.00 191 103 54% 8.8
All Kill 60 47 78% 0.00 38 32 84% 4.0
Alloys 582 198 34% 0.00 214 179 84% 4.0
All Pairs Shortest Path 12490 2346 19% 0.00 1484 1065 72% 5.3
Almost Perfect 10265 2380 23% 0.00 2469 1967 80% 3.0
Alphabet 2184 1115 51% 0.00 1065 901 85% 3.1
Alphabet Animals 3202 944 29% 0.00 883 724 82% 3.2
Alphabet Spam 9716 6033 62% 0.00 5044 4847 96% 1.4
Alternating Current 648 632 98% 0.00 106 104 98% 1.3 - 7.8
Alternative Anagram 222 78 35% 0.00 65 52 80% 6.3
Alternative Bracket Notation 213 91 43% 0.00 98 81 83% 5.0
Amsterdam Distance 2079 1015 49% 0.00 1036 881 85% 2.7
A Multiplication Game 1079 440 41% 0.00 467 365 78% 4.2
Anagram Counting 4394 1740 40% 0.00 1686 1421 84% 2.7
A New Adventure 1316 199 15% 0.00 206 146 71% 5.8
A New Alphabet 12708 5738 45% 0.00 5338 4932 92% 1.7
An I for an Eye 1013 302 30% 0.00 340 260 76% 4.5
Another Brick in the Wall 3856 1970 51% 0.00 1917 1756 92% 1.9
Another Candies 9269 2569 28% 0.00 2621 2190 84% 2.5
Another Coin Weighing Puzzle 478 138 29% 0.00 115 99 86% 4.5
Another Dice Game 117 76 65% 0.00 74 64 86% 4.2
Antenna Placement 179 75 42% 0.00 61 46 75% 6.7
Anthony and Cora 1058 288 27% 0.00 332 227 68% 5.7
Anthony and Diablo 3985 1462 37% 0.00 1470 1285 87% 2.4
Ants 4451 2019 45% 0.00 1654 1446 87% 2.6
Apaxiaaaaaaaaaaaans! 15656 9352 60% 0.00 8349 7967 95% 1.5
Apostrophe Catastrophe 137 32 23% 0.00 36 23 64% 6.9
Appalling Architecture 856 248 29% 0.00 221 183 83% 4.1
A Prize No One Can Win 5844 1777 30% 0.00 1453 1278 88% 2.4
Aquarium Tank 575 162 28% 0.00 158 123 78% 5.9
A Question of Ingestion 2004 471 24% 0.00 419 325 78% 5.5
A Random Problem 357 91 25% 0.00 85 60 71% 6.1
A Rational Sequence 1967 662 34% 0.00 713 520 73% 5.1
A Rational Sequence 2 2584 1906 74% 0.00 1685 1620 96% 1.5
A Rational Sequence (Take 3) 1145 928 81% 0.00 776 742 96% 1.7
Architecture 188 106 56% 0.00 108 100 93% 2.8
Arctic Network 2532 901 36% 0.00 687 568 83% 4.1
A Real Challenge 10252 5020 49% 0.00 4748 4459 94% 1.5
Are You Listening? 2261 718 32% 0.00 681 614 90% 2.5
Arithmetic 3614 1082 30% 0.00 1116 882 79% 3.6
Army Strength (Easy) 4160 2113 51% 0.00 1969 1774 90% 2.2
Around and Around We Go 59 16 27% 0.00 27 15 56% 7.2
Around the Track 286 37 13% 0.00 58 27 47% 9.0
Arrangement 314 274 87% 0.00 225 224 100% 1.3 - 1.9
Array of Discord 1794 342 19% 0.00 363 253 70% 5.5
ASCII Addition 1461 844 58% 0.00 753 711 94% 1.8
ASCII Figure Rotation 2285 754 33% 0.00 779 661 85% 3.2
As Easy as CAB 1208 112 9% 0.00 270 88 33% 9.1
Aspen Avenue 2208 621 28% 0.00 411 276 67% 6.0
Association for Computing Machinery 2846 1085 38% 0.00 977 862 88% 2.7
Association for Cool Machineries (Part 2) 47 28 60% 0.00 32 25 78% 5.7
Association for the Country of Mububa 1987 404 20% 0.00 453 285 63% 7.2
Association of Myths 62 30 48% 0.00 36 28 78% 7.0
A Star not a Tree? 234 71 30% 0.00 57 39 68% 5.3
Asteroids 720 133 18% 0.00 98 74 76% 6.5
Astro 556 182 33% 0.00 176 149 85% 4.1
Astrological Sign 793 329 41% 0.00 335 299 89% 1.6
A Towering Problem 2551 1258 49% 0.00 1261 1145 91% 2.0
Autori 25773 16236 63% 0.00 14573 14117 97% 1.2
Average Speed 1404 470 33% 0.00 475 395 83% 3.4
A Vicious Pikeman (Easy) 2930 956 33% 0.00 741 649 88% 3.2
Avion 3833 2197 57% 0.00 2122 2039 96% 1.4
Baby Bites 4636 2367 51% 0.00 2251 2099 93% 1.7
Babylonian Numbers 1488 789 53% 0.00 797 717 90% 2.0
Backspace 13149 4842 37% 0.00 3798 3227 85% 2.7
Bacon, Eggs, and Spam 4477 2554 57% 0.00 2243 2089 93% 1.8
Baggage 344 116 34% 0.00 138 98 71% 5.5
Bakice 104 43 41% 0.00 53 41 77% 5.9
Bakterije 190 22 12% 0.00 38 18 47% 8.9