Problems from Northwestern Europe Regional Contest (NWERC) 2015

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Assigning Workstations 940 291 31% 0.05 297 224 75% 4.9
Better Productivity 301 70 23% 0.00 78 53 68% 6.8
Cleaning Pipes 685 200 29% 0.01 152 125 82% 4.0
Debugging 595 180 30% 0.00 179 138 77% 5.5
Elementary Math 1142 393 34% 0.00 304 232 76% 5.0
Flight Plan Evaluation 102 47 46% 0.00 41 37 90% 4.2
Guessing Camels 601 201 33% 0.04 163 119 73% 6.2
Hole in One 216 44 20% 0.00 42 35 83% 6.1
Identifying Map Tiles 1466 926 63% 0.00 873 835 96% 1.6
Jumbled Communication 854 607 71% 0.00 534 504 94% 1.9
Kitchen Combinatorics 511 175 34% 0.00 150 118 79% 5.7