Problems

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Submissions Users
Name Total Acc. Ratio Fastest   Total Acc. Ratio Difficulty
0-1 Sequences 11504 1813 16% 0.00 2358 1251 53% 5.9
2048 10599 4860 46% 0.00 4709 4021 85% 2.5
3D Printed Statues 14155 6508 46% 0.00 6097 5457 90% 2.1
3D Printer 983 161 16% 0.00 407 123 30% 8.9
3-Sided Dice 2888 237 8% 0.00 474 165 35% 8.7
4 thought 12204 4229 35% 0.00 4060 3426 84% 2.7
A1 Paper 6648 2012 30% 0.00 2001 1588 79% 3.8
Aaah! 35616 16622 47% 0.00 14971 13973 93% 1.5
ABC 19648 8888 45% 0.00 8448 7652 91% 2.0
Above Average 12745 5320 42% 0.00 5124 4612 90% 1.8
Abstract Art 455 150 33% 0.00 124 92 74% 6.0
Abstract Painting 1083 438 40% 0.00 388 317 82% 3.9
Absurdistan Roads II 702 236 34% 0.00 235 156 66% 7.0
ACM Contest Scoring 8406 5266 63% 0.00 4696 4445 95% 1.5
Adding Words 14249 3526 25% 0.00 3301 2588 78% 3.8
Add Two Numbers 2000 1474 74% 0.00 1407 1369 97% 1.2
A Different List Game 7505 524 7% 0.00 985 192 19% 9.3
A Different Problem 40105 14883 37% 0.00 13594 11782 87% 2.5
Adjoin the Networks 2651 689 26% 0.00 588 470 80% 5.6
Ads 825 77 9% 0.00 151 52 34% 6.0
Adventures in Moving -- Part IV 1776 395 22% 0.00 342 282 82% 4.8
A Favourable Ending 1926 530 28% 0.00 492 385 78% 4.4
A Feast For Cats 3394 1283 38% 0.00 928 801 86% 3.4
Air Conditioned Minions 6927 2041 29% 0.00 2097 1629 78% 3.3
Airport Logistics 70 18 26% 0.00 24 17 71% 6.9
Akcija 9685 4476 46% 0.00 4012 3593 90% 1.9
Alex and Barb 1145 395 34% 0.00 457 356 78% 3.5
Alien Microwave 236 94 40% 0.00 123 90 73% 6.5
Alien Numbers 2930 1541 53% 0.00 1512 1383 91% 1.9
A List Game 10811 3289 30% 0.00 3156 2671 85% 2.9
All about that base 3288 1315 40% 0.00 1266 1072 85% 3.0
All Different Directions 1686 782 46% 0.00 743 664 89% 2.5
Allergy Test 640 161 25% 0.00 207 101 49% 8.0
All Friends 1153 218 19% 0.00 206 108 52% 8.8
All Kill 97 80 82% 0.00 53 46 87% 3.0
Alloys 825 302 37% 0.00 310 261 84% 3.7
All Pairs Shortest Path 13677 2627 19% 0.00 1654 1190 72% 5.6
Almost Perfect 12961 2949 23% 0.00 3013 2397 80% 3.1
Alphabet 2602 1344 52% 0.00 1274 1086 85% 2.9
Alphabet Animals 3587 1049 29% 0.00 973 794 82% 3.5
Alphabet Spam 10630 6659 63% 0.00 5637 5424 96% 1.3
Alternating Current 689 671 97% 0.00 117 114 97% 1.3 - 7.9
Alternative Anagram 257 82 32% 0.00 74 54 73% 7.8
Alternative Bracket Notation 235 101 43% 0.00 110 90 82% 5.5
Alto Singing 83 34 41% 0.00 35 32 91% 4.8
Amsterdam Distance 2233 1116 50% 0.00 1129 967 86% 2.6
A Multiplication Game 1268 519 41% 0.00 556 433 78% 4.2
Anagram Counting 4681 1876 40% 0.00 1807 1526 84% 2.7
A New Adventure 1478 225 15% 0.00 220 156 71% 5.8
A New Alphabet 13812 6204 45% 0.00 5815 5341 92% 2.3
An I for an Eye 1276 367 29% 0.00 419 314 75% 4.7
Another Brick in the Wall 4215 2172 52% 0.00 2107 1928 92% 1.9
Another Candies 10177 2851 28% 0.00 2879 2415 84% 2.6
Another Coin Weighing Puzzle 565 159 28% 0.00 137 109 80% 6.4
Another Dice Game 133 81 61% 0.00 81 68 84% 4.4
Antenna Placement 199 82 41% 0.00 71 51 72% 7.8
Anthony and Cora 1241 298 24% 0.00 346 236 68% 5.7
Anthony and Diablo 4279 1571 37% 0.00 1596 1391 87% 2.4
Ants 4874 2226 46% 0.00 1811 1601 88% 2.3
Apaxiaaaaaaaaaaaans! 17497 10521 60% 0.00 9421 8990 95% 1.4
Apostrophe Catastrophe 148 39 26% 0.00 38 26 68% 6.4
Appalling Architecture 887 262 30% 0.00 234 194 83% 4.1
A Prize No One Can Win 6072 1909 31% 0.00 1564 1380 88% 2.3
Aquarium Tank 591 168 28% 0.00 165 126 76% 6.3
A Question of Ingestion 2153 496 23% 0.00 451 346 77% 5.4
A Random Problem 393 101 26% 0.00 91 64 70% 6.8
A Rational Sequence 2056 704 34% 0.00 749 550 73% 5.1
A Rational Sequence 2 2736 2030 74% 0.00 1791 1722 96% 1.5
A Rational Sequence (Take 3) 1265 1019 81% 0.00 862 826 96% 1.7
Archimedes 32 6 19% 0.00 6 5 83% 5.2
Architecture 287 157 55% 0.00 158 144 91% 3.0
Arctic Network 2661 956 36% 0.00 730 602 82% 4.2
A Real Challenge 11005 5402 49% 0.00 5108 4808 94% 1.4
Are You Listening? 2685 872 32% 0.00 827 748 90% 2.5
Arithmetic 3883 1188 31% 0.00 1199 948 79% 3.7
Arithmetic Decoding 141 86 61% 0.00 76 68 89% 3.2
Army Strength (Easy) 4306 2200 51% 0.00 2055 1852 90% 2.2
Around and Around We Go 59 16 27% 0.00 27 15 56% 7.2
Around the Track 301 39 13% 0.00 61 29 48% 9.2
Arrangement 670 573 86% 0.00 508 491 97% 1.3 - 1.8
Array of Discord 3221 651 20% 0.00 583 423 73% 4.8
ASCII Addition 1538 903 59% 0.00 807 764 95% 1.8
ASCII Figure Rotation 2448 817 33% 0.00 843 718 85% 3.1
As Easy as CAB 1347 127 9% 0.00 289 99 34% 9.1
Aspen Avenue 2291 643 28% 0.00 435 289 66% 6.3
Association for Computing Machinery 2925 1120 38% 0.00 1004 885 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 2033 417 21% 0.00 464 295 64% 7.0
Association of Myths 63 30 48% 0.00 37 28 76% 7.6
A Star not a Tree? 252 77 31% 0.00 64 45 70% 5.6
Asteroids 754 134 18% 0.00 106 75 71% 7.6
Astro 610 197 32% 0.00 191 163 85% 4.0
Astrological Sign 1279 547 43% 0.00 553 490 89% 1.8
A Towering Problem 2750 1346 49% 0.00 1353 1221 90% 2.2
Autori 31856 19079 60% 0.00 16703 16043 96% 1.5
Average Speed 1470 502 34% 0.00 507 421 83% 3.5
A Vicious Pikeman (Easy) 3192 1086 34% 0.00 845 747 88% 2.9
Avion 4593 2617 57% 0.00 2505 2408 96% 1.4
Baby Bites 5157 2661 52% 0.00 2504 2346 94% 1.6
Babylonian Numbers 1650 881 53% 0.00 879 791 90% 2.1