Problems

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Submissions Users
Name Total Acc. Ratio Fastest   Total Acc. Ratio Difficulty
0-1 Sequences 12256 1908 16% 0.00 2483 1306 53% 6.4
2048 10969 5012 46% 0.00 4886 4157 85% 2.7
3D Printed Statues 14948 6861 46% 0.00 6460 5770 89% 2.2
3D Printer 1025 166 16% 0.00 429 128 30% 8.9
3-Sided Dice 2951 240 8% 0.00 485 168 35% 8.8
4 thought 13014 4460 34% 0.00 4248 3580 84% 2.8
A1 Paper 6909 2084 30% 0.00 2071 1650 80% 3.7
Aaah! 37409 17538 47% 0.00 15806 14758 93% 1.5
ABC 20681 9368 45% 0.00 8904 8074 91% 1.8
Above Average 13640 5652 41% 0.00 5445 4884 90% 2.2
Abstract Art 469 155 33% 0.00 131 95 73% 6.5
Abstract Painting 1189 472 40% 0.00 415 336 81% 4.2
Absurdistan Roads II 710 238 34% 0.00 241 158 66% 7.1
ACM Contest Scoring 8731 5445 62% 0.00 4863 4599 95% 1.5
Adding Words 14906 3661 25% 0.00 3430 2685 78% 3.9
Add Two Numbers 5606 3724 66% 0.00 3505 3373 96% 1.3
A Different List Game 7563 524 7% 0.00 1002 192 19% 9.3
A Different Problem 42318 15619 37% 0.00 14286 12367 87% 2.7
Adjoin the Networks 2790 704 25% 0.00 609 485 80% 5.7
Ads 874 92 11% 0.00 170 66 39% 5.1
Adventures in Moving -- Part IV 1802 403 22% 0.00 348 285 82% 5.0
A Favourable Ending 2167 578 27% 0.00 534 413 77% 4.5
A Feast For Cats 3547 1331 38% 0.00 971 840 87% 3.4
Air Conditioned Minions 7476 2196 29% 0.00 2194 1693 77% 3.9
Airport Logistics 71 19 27% 0.00 25 18 72% 7.0
Akcija 10642 4795 45% 0.00 4286 3824 89% 2.2
Alex and Barb 1262 439 35% 0.00 514 397 77% 3.5
Alien Microwave 249 98 39% 0.00 128 94 73% 6.7
Alien Numbers 3006 1587 53% 0.00 1555 1424 92% 1.9
A List Game 11141 3368 30% 0.00 3247 2747 85% 3.0
All about that base 3389 1344 40% 0.00 1297 1098 85% 3.0
All Different Directions 1743 810 46% 0.00 767 687 90% 2.5
Allergy Test 660 169 26% 0.00 215 107 50% 8.0
All Friends 1171 223 19% 0.00 211 112 53% 8.8
All in the Family 150 34 23% 0.00 49 32 65% 5.9
All Kill 124 102 82% 0.00 58 51 88% 3.6
Alloys 926 331 36% 0.00 347 287 83% 4.0
All Pairs Shortest Path 14021 2702 19% 0.00 1709 1227 72% 5.8
Almost Perfect 13764 3088 22% 0.00 3155 2509 80% 3.2
Alphabet 2711 1386 51% 0.00 1320 1120 85% 3.1
Alphabet Animals 8402 1547 18% 0.00 1364 977 72% 6.5
Alphabet Spam 11225 7005 62% 0.00 5957 5730 96% 1.4
Alternating Current 705 687 97% 0.00 120 117 98% 1.4 - 8.3
Alternative Anagram 267 85 32% 0.00 78 56 72% 7.3
Alternative Bracket Notation 240 104 43% 0.00 112 92 82% 5.4
Alto Singing 95 41 43% 0.00 42 39 93% 4.4
Amsterdam Distance 2327 1156 50% 0.00 1170 1004 86% 2.6
A Multiplication Game 1316 540 41% 0.00 581 450 77% 4.3
Anagram Counting 4795 1921 40% 0.00 1856 1561 84% 3.0
A New Adventure 1552 235 15% 0.00 230 165 72% 5.8
A New Alphabet 14159 6382 45% 0.00 5985 5499 92% 2.0
An I for an Eye 1330 382 29% 0.00 445 329 74% 4.9
Another Brick in the Wall 4506 2289 51% 0.00 2232 2031 91% 2.1
Another Candies 10656 2973 28% 0.00 2988 2510 84% 2.6
Another Coin Weighing Puzzle 771 209 27% 0.00 146 117 80% 6.2
Another Dice Game 136 84 62% 0.00 83 70 84% 4.5
Antenna Placement 201 84 42% 0.00 73 53 73% 7.7
Anthony and Cora 1272 307 24% 0.00 353 243 69% 5.6
Anthony and Diablo 4394 1616 37% 0.00 1638 1426 87% 2.5
Ants 5070 2304 45% 0.00 1881 1661 88% 2.5
Apaxiaaaaaaaaaaaans! 18341 11054 60% 0.00 9880 9431 95% 1.4
Apostrophe Catastrophe 148 39 26% 0.00 38 26 68% 6.5
Appalling Architecture 916 271 30% 0.00 243 202 83% 4.2
A Prize No One Can Win 6222 1980 32% 0.00 1633 1446 89% 2.3
Aquarium Tank 597 173 29% 0.00 169 130 77% 6.3
A Question of Ingestion 2178 498 23% 0.00 457 348 76% 5.7
A Random Problem 394 102 26% 0.00 92 65 71% 6.9
A Rank Problem 225 104 46% 0.00 112 95 85% 3.2
A Rational Sequence 2159 749 35% 0.00 783 581 74% 4.9
A Rational Sequence 2 2790 2075 74% 0.00 1829 1760 96% 1.5
A Rational Sequence (Take 3) 1318 1063 81% 0.00 901 863 96% 1.7
Arboriculture 64 41 64% 0.00 21 20 95% 4.5 - 7.7
Archimedes 35 7 20% 0.00 7 6 86% 5.0
Architecture 406 209 51% 0.00 204 182 89% 3.1
Arctic Network 2750 979 36% 0.00 749 620 83% 4.2
A Real Challenge 11522 5689 49% 0.00 5384 5069 94% 1.5
Are You Listening? 2777 900 32% 0.00 857 774 90% 2.6
Arithmetic 3979 1219 31% 0.00 1226 972 79% 3.7
Arithmetic Decoding 181 112 62% 0.00 99 91 92% 2.6
Arithmetic Functions 81 51 63% 0.00 50 49 98% 2.1
ARMPIT Computations 12 7 58% 0.00 7 6 86% 4.8
Army Strength (Easy) 4472 2266 51% 0.00 2126 1909 90% 2.4
Around and Around We Go 59 16 27% 0.00 27 15 56% 7.3
Around the Track 308 40 13% 0.00 66 30 45% 9.2
Arrangement 812 686 84% 0.00 613 593 97% 1.3 - 1.8
Array of Discord 3568 726 20% 0.00 638 462 72% 5.1
ASCII Addition 1563 925 59% 0.00 827 783 95% 1.9
ASCII Figure Rotation 2485 831 33% 0.00 861 730 85% 3.4
As Easy as CAB 1371 133 10% 0.00 295 105 36% 9.0
Aspen Avenue 2302 646 28% 0.00 441 292 66% 6.5
Association for Computing Machinery 2996 1152 38% 0.00 1023 904 88% 2.7
Association for Cool Machineries (Part 2) 48 28 58% 0.00 33 25 76% 6.5
Association for the Country of Mububa 2080 433 21% 0.00 475 301 63% 7.1
Association of Myths 77 41 53% 0.00 48 39 81% 5.8
A Star not a Tree? 254 78 31% 0.00 65 46 71% 5.6
Asteroids 760 138 18% 0.00 110 79 72% 7.3
Astro 643 207 32% 0.00 203 173 85% 4.1
Astrological Sign 1514 654 43% 0.00 608 543 89% 1.9
A Towering Problem 2818 1366 48% 0.00 1377 1241 90% 2.3
Autori 32506 19532 60% 0.00 17098 16419 96% 1.4