Problems by Gordon V. Cormack

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Adventures in Moving -- Part IV 1769 392 22% 0.00 338 279 83% 4.8
Average Speed 1453 499 34% 0.00 500 418 84% 3.4
Babelfish 11393 5048 44% 0.01 4055 3607 89% 2.4
Beat the Spread! 4658 1721 37% 0.00 1428 1272 89% 2.4
Billiard 2311 1281 55% 0.00 1189 1128 95% 1.8
Biometrics 241 81 34% 0.00 76 60 79% 6.7
Calories From Fat 1188 646 54% 0.00 553 514 93% 2.1
CD 40908 9133 22% 0.00 5464 3985 73% 5.2
Celebrity Split 512 109 21% 0.13 90 57 63% 7.8
Combination Lock 2455 1078 44% 0.00 1039 905 87% 2.5
Conformity 5916 2718 46% 0.00 1976 1852 94% 1.9
Councilling 1309 201 15% 0.03 173 125 72% 7.2
Cousins 48 15 31% 0.00 18 13 72% 5.9
Equations 550 128 23% 0.00 103 80 78% 5.3
Evil Straw Warts Live 830 274 33% 0.00 215 191 89% 3.3
Factstone Benchmark 1405 584 42% 0.00 500 394 79% 4.4
Ferry Loading III 2658 701 26% 0.01 545 456 84% 3.9
Ferry Loading V 194 79 41% 0.00 57 49 86% 4.5
Genealogical Research 825 138 17% 0.00 138 109 79% 3.7
Guessing Game 4171 1196 29% 0.00 1217 1029 85% 3.1
Help! 3150 453 14% 0.00 389 270 69% 6.3
Intellectual Property 181 52 29% 0.04 33 19 58% 8.6
Jack and Jill 269 83 31% 0.19 43 27 63% 8.9
Life Forms 1237 229 19% 0.07 172 96 56% 7.4
Mall Mania 512 156 30% 0.03 120 100 83% 4.6
Map 183 32 17% 0.00 45 25 56% 7.0
Paintball II 391 103 26% 0.00 89 65 73% 4.3
Perfect Pth Powers 9269 1436 15% 0.00 1159 852 74% 5.3
Prerequisites? 793 505 64% 0.00 452 431 95% 1.9
Pseudoprime numbers 1578 666 42% 0.00 573 506 88% 3.3
Rinse 105 19 18% 0.00 28 18 64% 7.8
Rocket Stages 299 67 22% 0.03 43 27 63% 3.8
Rock-Paper-Scissors Tournament 6018 1510 25% 0.02 1197 979 82% 3.9
Russian Dolls 1275 36 3% 0.00 70 27 39% 8.8
Structural Equivalence 17 6 35% 0.00 9 6 67% 5.7
Subway 388 129 33% 0.00 128 110 86% 4.7
Tautology 869 402 46% 0.00 310 279 90% 3.4
Test 123 61 50% 0.00 49 37 76% 6.6
The Trip, 2007 916 346 38% 0.01 271 246 91% 2.9
Tour de France 1687 587 35% 0.00 561 490 87% 3.1
Tournament 46 7 15% 0.04 12 7 58% 7.5
Treasure Map 211 87 41% 0.01 72 59 82% 6.1
Treequivalence 57 20 35% 0.00 24 19 79% 6.4
War on Weather 285 132 46% 0.00 129 116 90% 3.5
WFF 'N PROOF 754 288 38% 0.00 282 250 89% 2.8
XYZZY 1999 350 18% 0.01 315 222 70% 6.7