Problems by Ulf Lundström

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A1 Paper 4226 1257 30% 0.00 1230 974 79% 3.5
Black Friday 5884 2266 39% 0.00 2259 1970 87% 2.1
Card Hand Sorting 587 229 39% 0.00 190 159 84% 4.0
Car Game 2122 561 26% 0.10 393 243 62% 5.9
Coast Length 5354 1946 36% 0.01 1365 1163 85% 3.2
Erase Securely 3926 2086 53% 0.00 1946 1822 94% 1.6
Falling Mugs 2392 613 26% 0.00 560 485 87% 3.3
Flag Quiz 389 138 35% 0.00 146 119 82% 4.2
Galactic Warlords 466 108 23% 0.00 132 97 73% 6.4
Kayaking Trip 827 287 35% 0.01 233 193 83% 5.1
Kindergarten Excursion 1397 493 35% 0.00 387 322 83% 4.2
Lifting Walls 2563 651 25% 0.00 510 437 86% 3.6
Luggage 286 48 17% 0.06 40 31 78% 7.4
Number Trick 1373 247 18% 0.00 287 171 60% 6.9
Proteins 156 52 33% 0.01 51 41 80% 5.6
Restaurant Orders 4395 816 19% 0.01 667 503 75% 4.8
Tomography 1214 317 26% 0.00 228 183 80% 3.9
Tomosynthesis 47 21 45% 0.00 21 18 86% 5.8
Vacuum Tubes 266 75 28% 0.01 71 55 77% 5.6
Virus Replication 3101 734 24% 0.00 688 554 81% 4.1
X-ray spectrum 166 38 23% 0.00 39 34 87% 4.5