Problems by Gordon V. Cormack

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Adventures in Moving -- Part IV 1515 345 23% 0.00 295 249 84% 4.5
Average Speed 1307 425 33% 0.00 438 358 82% 3.6
Babelfish 9918 4292 43% 0.01 3439 3050 89% 2.1
Beat the Spread! 3927 1442 37% 0.00 1185 1054 89% 2.4
Billiard 1936 1099 57% 0.00 1005 964 96% 1.6
Biometrics 208 70 34% 0.00 62 50 81% 5.5
CD 34853 7940 23% 0.00 4678 3433 73% 5.1
Calories From Fat 802 448 56% 0.00 403 373 93% 2.0
Celebrity Split 379 92 24% 0.13 80 49 61% 8.5
Combination Lock 1961 852 43% 0.00 823 709 86% 2.6
Conformity 4105 1775 43% 0.00 1319 1235 94% 2.0
Councilling 846 149 18% 0.03 121 92 76% 6.9
Cousins 37 12 32% 0.00 16 11 69% 6.5
Equations 364 100 27% 0.00 69 57 83% 4.9
Evil Straw Warts Live 368 129 35% 0.00 111 94 85% 3.4
Factstone Benchmark 916 426 47% 0.00 331 273 82% 3.6
Ferry Loading III 2353 613 26% 0.01 459 388 85% 3.6
Ferry Loading V 170 68 40% 0.00 51 42 82% 4.9
Genealogical Research 539 98 18% 0.00 102 78 76% 3.4
Guessing Game 3101 907 29% 0.00 914 781 85% 2.6
Help! 2412 377 16% 0.00 311 217 70% 6.6
Intellectual Property 120 34 28% 0.05 22 12 55% 8.9
Jack and Jill 243 80 33% 0.19 38 24 63% 8.3
Life Forms 941 187 20% 0.07 138 74 54% 7.5
Mall Mania 232 85 37% 0.05 67 57 85% 4.5
Map 158 26 16% 0.00 36 20 56% 8.4
Paintball II 248 67 27% 0.00 62 41 66% 7.4
Perfect Pth Powers 7750 1160 15% 0.00 961 704 73% 5.5
Prerequisites? 607 377 62% 0.00 340 325 96% 1.9
Pseudoprime numbers 1214 503 41% 0.00 438 387 88% 3.5
Rinse 66 12 18% 0.00 20 12 60% 8.4
Rock-Paper-Scissors Tournament 5228 1324 25% 0.02 1072 877 82% 3.8
Rocket Stages 149 32 21% 0.03 27 15 56% 5.0
Russian Dolls 1115 28 3% 0.00 56 21 38% 9.0
Structural Equivalence 17 6 35% 0.00 9 6 67% 5.7
Subway 257 93 36% 0.00 98 82 84% 5.4
Tautology 613 287 47% 0.00 226 200 88% 3.4
Test 89 48 54% 0.01 31 26 84% 6.1
The Trip, 2007 827 312 38% 0.01 237 214 90% 2.9
Tour de France 1137 452 40% 0.00 431 385 89% 2.7
Tournament 42 6 14% 0.04 10 6 60% 7.4
Treasure Map 114 44 39% 0.01 43 34 79% 5.4
Treequivalence 56 20 36% 0.00 23 19 83% 6.4
WFF 'N PROOF 364 165 45% 0.00 164 149 91% 2.7
War on Weather 229 114 50% 0.00 112 101 90% 3.6
XYZZY 1645 296 18% 0.01 261 180 69% 6.9