Problems by Gordon V. Cormack

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Adventures in Moving -- Part IV 896 264 29% 0.00 231 199 86% 4.3
Average Speed 1029 324 31% 0.00 332 276 83% 3.5
Babelfish 7807 3400 44% 0.02 2722 2413 89% 1.9
Beat the Spread! 2882 1031 36% 0.00 946 830 88% 2.4
Billiard 1624 903 56% 0.00 830 796 96% 1.6
Biometrics 141 50 35% 0.00 50 42 84% 5.8
Calories From Fat 609 361 59% 0.00 318 295 93% 2.0
CD 28118 6458 23% 0.00 3849 2835 74% 4.5
Celebrity Split 293 76 26% 0.13 66 40 61% 8.6
Combination Lock 1467 626 43% 0.00 625 530 85% 2.7
Conformity 2667 1126 42% 0.00 848 787 93% 1.9
Councilling 779 124 16% 0.03 106 80 75% 7.4
Cousins 35 10 29% 0.00 14 9 64% 6.6
Equations 299 87 29% 0.00 57 47 82% 5.3
Evil Straw Warts Live 294 109 37% 0.00 95 80 84% 3.9
Factstone Benchmark 503 235 47% 0.00 196 167 85% 3.5
Ferry Loading III 2076 541 26% 0.01 393 336 85% 3.2
Ferry Loading V 155 64 41% 0.00 46 38 83% 4.1
Genealogical Research 502 90 18% 0.00 92 71 77% 3.1
Guessing Game 2182 635 29% 0.00 637 546 86% 2.5
Help! 1630 291 18% 0.00 222 158 71% 6.5
Intellectual Property 97 34 35% 0.05 21 12 57% 8.9
Jack and Jill 236 79 33% 0.19 36 23 64% 7.7
Life Forms 613 137 22% 0.07 104 58 56% 7.7
Mall Mania 181 66 36% 0.05 49 42 86% 5.0
Map 149 25 17% 0.00 33 19 58% 7.9
Paintball II 183 51 28% 0.00 48 35 73% 6.5
Perfect Pth Powers 5635 820 15% 0.00 751 542 72% 5.2
Prerequisites? 424 252 59% 0.00 227 213 94% 2.0
Pseudoprime numbers 947 375 40% 0.00 320 283 88% 3.6
Rinse 66 12 18% 0.00 20 12 60% 8.1
Rocket Stages 83 8 10% 0.05 18 8 44% 7.4
Rock-Paper-Scissors Tournament 4476 1103 25% 0.02 920 736 80% 4.1
Russian Dolls 1032 24 2% 0.00 45 18 40% 8.9
Structural Equivalence 15 5 33% 0.00 7 5 71% 5.7
Subway 201 71 35% 0.00 79 66 84% 5.4
Tautology 459 224 49% 0.00 169 151 89% 3.4
Test 69 35 51% 0.01 18 16 89% 4.7
The Trip, 2007 708 266 38% 0.01 187 173 93% 2.9
Tour de France 983 379 39% 0.00 364 321 88% 2.7
Tournament 25 3 12% 0.04 7 3 43% 8.1
Treasure Map 107 41 38% 0.01 39 31 79% 5.0
Treequivalence 47 14 30% 0.00 17 13 76% 6.7
War on Weather 209 102 49% 0.00 101 90 89% 3.9
WFF 'N PROOF 229 107 47% 0.00 111 99 89% 3.0
XYZZY 1169 250 21% 0.01 197 144 73% 6.8