Problems from 2019 Atlantic Canadian Preliminary Contest

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
ARMPIT Computations0.003032428334%5.9Harden
Happy and Unhappy Numbers0.0125649114229%5.3Mediumen
Largest Hoarding0.0011356021338%3.7Mediumen
Meeting Points0.0116554311621%5.7Harden
Shortlex0.00540616240%3.2Mediumen
Space Mail0.1045174822029%4.4Mediumen
UTF-80.0012489237442%2.2Easyen