Problems from 2018 Atlantic Canadian Preliminary Contest

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Divisibility Shortcut 587 167 28% 0.00 139 113 81% 4.2
Driver's Dilemma 1056 543 51% 0.00 503 476 95% 2.0
Fog Catchers 33 11 33% 0.14 8 6 75% 5.8
Lorem Ipsum 85 27 32% 0.01 31 22 71% 5.2
Luhn's Checksum Algorithm 3734 2136 57% 0.00 1891 1813 96% 1.6
Multi-Year Contest Scheduling 94 40 43% 0.00 39 33 85% 5.2
Party Game 505 146 29% 0.00 119 92 77% 4.5
Send More Money 188 53 28% 0.00 64 42 66% 7.7