Problems

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Submissions Users
Name Total Acc. Ratio Fastest Total Acc. Ratio Difficulty  
Planting Trees 13961 6375 46% 0.00 5284 4787 91% 1.8
Pervasive Heart Monitor 2591 1389 54% 0.00 1349 1268 94% 1.8
Peragrams 7509 3630 48% 0.00 2547 2411 95% 1.8
Paul Eigon 4848 2465 51% 0.00 2403 2257 94% 1.8
Östgötska 2522 1199 48% 0.00 1174 1105 94% 1.8
Nine Knights 3475 1620 47% 0.00 1483 1362 92% 1.8
Mosquito Multiplication 1892 1158 61% 0.00 1110 1054 95% 1.8
Mancala 666 468 70% 0.00 439 417 95% 1.8
Križaljka 1570 865 55% 0.00 838 794 95% 1.8
Kitten on a Tree 3723 2209 59% 0.00 1852 1735 94% 1.8
Inflation 2663 1420 53% 0.01 1169 1088 93% 1.8
Hot Hike 3627 1990 55% 0.00 1690 1575 93% 1.8
Hiding Places 1597 1037 65% 0.00 910 854 94% 1.8
Heliocentric 2711 1572 58% 0.00 1397 1313 94% 1.8
Half a Cookie 1729 967 56% 0.00 859 820 95% 1.8
Flexible Spaces 8352 4616 55% 0.00 3715 3455 93% 1.8
False Sense of Security 2285 1395 61% 0.00 1224 1166 95% 1.8
Exam 3109 1798 58% 0.00 1507 1389 92% 1.8
Eeny Meeny 1586 965 61% 0.00 849 798 94% 1.8
Early Winter 1788 1053 59% 0.00 972 920 95% 1.8
Conformity 6655 3071 46% 0.00 2245 2108 94% 1.8
Compound Words 4977 2912 59% 0.00 2640 2490 94% 1.8
Cetiri 3554 1942 55% 0.00 1861 1729 93% 1.8
Broken Swords 1677 957 57% 0.00 901 854 95% 1.8
Boss Battle 5233 2901 55% 0.00 2738 2542 93% 1.8
Booking a Room 9760 4687 48% 0.00 4269 3992 94% 1.8
Billiard 2388 1314 55% 0.00 1216 1154 95% 1.8
Bacon, Eggs, and Spam 5174 2922 56% 0.00 2599 2409 93% 1.8
Baby Bites 5863 2979 51% 0.00 2804 2615 93% 1.8
Veci 3587 2035 57% 0.00 1888 1766 94% 1.9
Vauvau 3176 1858 59% 0.00 1828 1699 93% 1.9
Vacuumba 2319 1164 50% 0.00 1044 988 95% 1.9
ToLower 2570 1243 48% 0.00 1240 1152 93% 1.9
This Ain't Your Grandpa's Checkerboard 2343 1308 56% 0.00 1175 1077 92% 1.9
Tetris 1299 736 57% 0.00 537 504 94% 1.9
Spelling Bee 619 333 54% 0.01 268 256 96% 1.9
Some Sum 3399 1490 44% 0.00 1425 1282 90% 1.9
Shopping List (Easy) 869 447 51% 0.00 430 394 92% 1.9
Server 13110 5419 41% 0.00 5011 4650 93% 1.9
Semafori 1748 1116 64% 0.00 1054 983 93% 1.9
Saving For Retirement 4919 2232 45% 0.00 2152 2005 93% 1.9
Run-Length Encoding, Run! 4714 2831 60% 0.00 2518 2362 94% 1.9
Red Rover 1165 689 59% 0.00 628 586 93% 1.9
Ragged Right 4184 2130 51% 0.00 2117 1946 92% 1.9
Prerequisites? 1054 638 61% 0.00 559 535 96% 1.9
Preludes 2243 1197 53% 0.00 1163 1091 94% 1.9
Peg 2126 1258 59% 0.00 1250 1154 92% 1.9
Pachyderm Peanut Packing 802 544 68% 0.00 502 474 94% 1.9
Oktalni 1899 1065 56% 0.00 1041 971 93% 1.9
Moscow Dream 6091 2229 37% 0.00 1926 1783 93% 1.9
Marko 1465 812 55% 0.00 748 705 94% 1.9
Kafkaesque 1650 805 49% 0.00 777 713 92% 1.9
Jabuke 2146 1046 49% 0.00 912 861 94% 1.9
Islands 5154 2426 47% 0.00 1934 1819 94% 1.9
GlitchBot 2470 1518 61% 0.00 1331 1234 93% 1.9
Fun House 1862 1037 56% 0.00 948 889 94% 1.9
Functional Fun 1611 739 46% 0.00 639 604 95% 1.9
Friday the 13th 3192 1676 53% 0.00 1631 1520 93% 1.9
Flow Layout 2115 1283 61% 0.00 1274 1160 91% 1.9
EpigDanceOff 1542 1082 70% 0.00 896 844 94% 1.9
Egypt 4379 1689 39% 0.00 1629 1473 90% 1.9
Death Knight Hero 5802 2930 50% 0.00 2848 2656 93% 1.9
Costume Contest 1692 903 53% 0.00 882 817 93% 1.9
Cooking Water 1509 856 57% 0.00 801 751 94% 1.9
Convex Polygon Area 1732 1092 63% 0.00 970 921 95% 1.9
Completing the Square 1886 1190 63% 0.00 1048 979 93% 1.9
Careful Ascent 2275 1234 54% 0.00 1045 995 95% 1.9
Best Relay Team 8055 3663 45% 0.00 2621 2434 93% 1.9
Astrological Sign 1517 656 43% 0.00 610 545 89% 1.9
ASCII Addition 1566 928 59% 0.00 830 786 95% 1.9
Alien Numbers 3008 1588 53% 0.00 1556 1425 92% 1.9
ABC 20785 9399 45% 0.00 8943 8102 91% 1.9
Graduation 743 725 98% 0.00 369 368 100% 1.2 - 2.0
Blåtand 483 408 84% 0.00 281 273 97% 1.5 - 2.0
Video Speedup 1136 681 60% 0.00 628 591 94% 2.0
Un-bear-able Zoo 4300 2367 55% 0.00 2268 2092 92% 2.0
Touchscreen Keyboard 1962 1177 60% 0.00 955 890 93% 2.0
The Grand Adventure 1877 824 44% 0.00 779 715 92% 2.0
Social running 643 365 57% 0.00 356 338 95% 2.0
Simple Cron Spec 529 319 60% 0.00 300 272 91% 2.0
Simple Addition 6219 3090 50% 0.00 2994 2689 90% 2.0
Set! 1183 574 49% 0.00 559 529 95% 2.0
Right-of-Way 850 384 45% 0.00 380 348 92% 2.0
Radio Commercials 7312 3439 47% 0.00 2747 2527 92% 2.0
Printing Costs 2588 1183 46% 0.00 1134 1049 93% 2.0
Popularity Contest 70 61 87% 0.01 48 48 100% 2.0
Polynomial Multiplication 1 2284 1271 56% 0.00 975 915 94% 2.0
Permutation Descent Counts 732 534 73% 0.00 418 396 95% 2.0
Parking 3107 2067 67% 0.00 2069 1933 93% 2.0
One Chicken Per Person! 15761 5318 34% 0.00 4942 4588 93% 2.0
Okviri 1506 772 51% 0.00 770 709 92% 2.0
Musical Notation 1230 624 51% 0.00 594 561 94% 2.0
Misa 1240 761 61% 0.00 696 653 94% 2.0
Minimum Scalar Product 7129 2777 39% 0.00 2198 1996 91% 2.0
Math Homework 1546 775 50% 0.00 667 619 93% 2.0
Job Switching 317 179 56% 0.01 161 150 93% 2.0
Howl 2652 1248 47% 0.00 1099 1011 92% 2.0
Hay Points 4127 2224 54% 0.01 1764 1615 92% 2.0
Hardware 796 438 55% 0.00 412 374 91% 2.0
Greedily Increasing Subsequence 5017 2465 49% 0.02 1994 1827 92% 2.0