Problems by Ulf Lundström

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A1 Paper 5466 1609 29% 0.00 1577 1246 79% 3.8
Alphabet Animals 2046 638 31% 0.00 631 510 81% 3.3
Black Friday 7401 2796 38% 0.00 2802 2445 87% 2.2
Car Game 2364 650 27% 0.10 432 272 63% 6.1
Card Hand Sorting 645 257 40% 0.00 207 171 83% 4.2
Coast Length 6317 2280 36% 0.01 1651 1393 84% 3.8
Erase Securely 4833 2549 53% 0.00 2375 2221 94% 1.7
Falling Mugs 2875 763 27% 0.00 695 605 87% 3.2
Flag Quiz 567 205 36% 0.00 207 175 85% 3.7
Galactic Warlords 503 116 23% 0.00 140 101 72% 6.6
Kayaking Trip 946 329 35% 0.01 261 217 83% 5.1
Kindergarten Excursion 1859 619 33% 0.00 521 424 81% 4.2
Lifting Walls 3254 783 24% 0.00 640 540 84% 4.0
Luggage 306 51 17% 0.06 45 34 76% 7.6
Number Trick 1588 267 17% 0.00 312 181 58% 7.2
Proteins 185 57 31% 0.01 57 46 81% 5.9
Restaurant Orders 6730 1421 21% 0.01 972 743 76% 4.3
Tomography 1503 391 26% 0.00 295 242 82% 3.7
Tomosynthesis 94 31 33% 0.00 25 22 88% 4.9
Vacuum Tubes 272 76 28% 0.01 74 56 76% 6.6
Virus Replication 4754 1060 22% 0.00 943 768 81% 3.6
X-ray spectrum 180 43 24% 0.00 43 38 88% 4.5