Problems

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Submissions Users
Name Total Acc. Ratio Fastest   Total Acc. Ratio Difficulty
0-1 Sequences 8015 1133 14% 0.00 1525 754 49% 7.0
2048 7714 3606 47% 0.00 3465 2963 86% 2.2
3D Printed Statues 9057 4151 46% 0.00 3845 3442 90% 1.9
3D Printer 704 129 18% 0.00 275 99 36% 8.6
3-Sided Dice 2223 192 9% 0.00 362 133 37% 8.6
4 thought 7912 2670 34% 0.00 2651 2212 83% 2.6
A1 Paper 4949 1463 30% 0.00 1446 1152 80% 3.6
Aaah! 26758 12433 46% 0.00 11167 10400 93% 1.6
ABC 12298 5563 45% 0.00 5291 4806 91% 1.9
Above Average 7723 3186 41% 0.00 3159 2828 90% 2.2
Abstract Art 272 81 30% 0.00 82 61 74% 6.6
Abstract Painting 199 85 43% 0.00 97 77 79% 3.7
Absurdistan Roads II 567 208 37% 0.00 200 138 69% 6.8
ACM Contest Scoring 6348 3969 63% 0.00 3507 3312 94% 1.6
Adding Words 9744 2284 23% 0.00 2236 1720 77% 3.6
A Different List Game 6659 470 7% 0.00 833 169 20% 9.1
A Different Problem 28549 10607 37% 0.00 9783 8495 87% 2.3
Adjoin the Networks 1963 513 26% 0.00 447 349 78% 5.6
Adventures in Moving -- Part IV 969 274 28% 0.00 238 203 85% 4.4
A Favourable Ending 1546 396 26% 0.00 373 284 76% 4.6
A Feast For Cats 1987 709 36% 0.00 475 401 84% 4.2
Air Conditioned Minions 4801 1322 28% 0.00 1396 1050 75% 3.9
Airport Logistics 63 13 21% 0.00 20 13 65% 8.0
Akcija 6879 3046 44% 0.00 2776 2461 89% 2.0
Alien Numbers 2155 1120 52% 0.00 1092 991 91% 2.0
A List Game 7777 2297 30% 0.00 2168 1824 84% 2.9
All about that base 2737 1074 39% 0.00 1055 883 84% 3.0
All Different Directions 1174 505 43% 0.00 475 416 88% 2.6
Allergy Test 448 128 29% 0.00 145 75 52% 7.7
All Friends 837 163 19% 0.00 150 78 52% 8.9
All Pairs Shortest Path 8323 1483 18% 0.00 1021 718 70% 6.0
Almost Perfect 7072 1653 23% 0.00 1763 1372 78% 3.7
Alphabet 1417 692 49% 0.00 711 596 84% 3.1
Alphabet Animals 1707 543 32% 0.00 549 443 81% 3.3
Alphabet Spam 7540 4718 63% 0.00 3851 3700 96% 1.4
Alternative Bracket Notation 205 86 42% 0.00 91 76 84% 5.6
Amsterdam Distance 1340 588 44% 0.00 636 522 82% 3.0
A Multiplication Game 717 239 33% 0.00 272 203 75% 4.7
Anagram Counting 3365 1293 38% 0.00 1256 1047 83% 3.1
A New Adventure 849 136 16% 0.00 152 102 67% 6.0
A New Alphabet 10447 4668 45% 0.00 4327 3997 92% 1.8
An I for an Eye 624 147 24% 0.00 174 118 68% 5.2
Another Brick in the Wall 3068 1512 49% 0.00 1460 1334 91% 1.9
Another Candies 7532 2053 27% 0.00 2130 1757 82% 2.7
Another Dice Game 97 67 69% 0.00 64 56 88% 4.0
Antenna Placement 133 62 47% 0.00 42 34 81% 5.5
Anthony and Cora 851 217 25% 0.00 258 181 70% 5.3
Anthony and Diablo 2881 991 34% 0.00 994 856 86% 2.5
Ants 3451 1525 44% 0.00 1225 1069 87% 2.7
Apaxiaaaaaaaaaaaans! 12243 7474 61% 0.00 6620 6338 96% 1.4
Apostrophe Catastrophe 99 24 24% 0.00 25 17 68% 6.3
Appalling Architecture 595 170 29% 0.00 146 123 84% 3.6
A Prize No One Can Win 2083 835 40% 0.00 759 664 87% 2.5
Aquarium Tank 474 133 28% 0.00 128 101 79% 5.1
A Question of Ingestion 1273 315 25% 0.00 302 230 76% 5.8
A Random Problem 313 80 26% 0.00 77 53 69% 6.3
A Rational Sequence 1710 563 33% 0.00 591 435 74% 4.6
A Rational Sequence 2 2079 1534 74% 0.00 1370 1311 96% 1.5
A Rational Sequence (Take 3) 859 696 81% 0.00 578 553 96% 1.8
Arctic Network 1562 562 36% 0.00 497 399 80% 4.5
A Real Challenge 8035 3890 48% 0.00 3682 3446 94% 1.6
Are You Listening? 1535 435 28% 0.00 403 354 88% 2.9
Arithmetic 2991 858 29% 0.00 886 684 77% 3.6
Army Strength (Easy) 3577 1800 50% 0.00 1677 1504 90% 2.2
Around and Around We Go 53 15 28% 0.00 26 14 54% 7.6
Around the Track 274 35 13% 0.00 55 25 45% 8.7
ASCII Addition 1100 589 54% 0.00 497 466 94% 2.0
ASCII Figure Rotation 1846 580 31% 0.00 602 506 84% 3.5
As Easy as CAB 952 67 7% 0.00 216 51 24% 9.4
Aspen Avenue 1113 368 33% 0.00 273 183 67% 7.2
Association for Computing Machinery 2511 950 38% 0.00 885 774 87% 2.6
Association for Cool Machineries (Part 2) 46 27 59% 0.00 31 24 77% 5.7
Association for the Country of Mububa 1777 350 20% 0.00 423 265 63% 7.0
Association of Myths 57 28 49% 0.00 33 28 85% 4.8
A Star not a Tree? 142 29 20% 0.00 33 20 61% 7.8
Asteroids 704 125 18% 0.00 89 66 74% 6.5
Astro 307 103 34% 0.00 111 96 86% 3.5
A Towering Problem 2121 1028 48% 0.00 1047 942 90% 2.2
Autori 19004 12048 63% 0.00 11003 10670 97% 1.2
Average Speed 1125 353 31% 0.00 371 300 81% 3.7
A Vicious Pikeman (Easy) 1947 599 31% 0.00 496 424 85% 3.8
Avion 1978 1100 56% 0.00 1081 1035 96% 1.4
Baby Bites 3345 1726 52% 0.00 1632 1521 93% 1.7
Babylonian Numbers 958 474 49% 0.00 480 422 88% 2.2
Backspace 9198 3495 38% 0.00 2754 2335 85% 2.8
Bacon, Eggs, and Spam 3443 2009 58% 0.00 1708 1604 94% 1.6
Baggage 316 105 33% 0.00 124 88 71% 5.5
Bakice 97 39 40% 0.00 48 37 77% 6.0
Bakterije 180 21 12% 0.00 33 17 52% 8.6
Balanced Diet 972 421 43% 0.00 364 298 82% 4.2
Ball Bearings 491 184 37% 0.00 192 159 83% 3.9
Banjo 265 48 18% 0.00 41 17 41% 9.2
Bank Queue 10541 2848 27% 0.00 2561 2082 81% 3.2
Bard 1582 751 47% 0.00 679 589 87% 2.7
Barking Up The Wrong Tree 231 29 13% 0.00 31 17 55% 8.5
Bar Shelf 293 174 59% 0.00 58 55 95% 1.8 - 8.7
Base-2 Palindromes 1142 447 39% 0.00 480 368 77% 4.4
basic 120 29 24% 0.00 36 24 67% 7.5
Basin City Surveillance 818 103 13% 0.00 124 62 50% 8.7
Basketball One-on-One 1395 706 51% 0.00 652 607 93% 1.4