Problems from 2019 Atlantic Canadian Preliminary Contest

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
ARMPIT Computations0.003032378335%5.9Harden
Happy and Unhappy Numbers0.0125648614229%5.3Mediumen
Largest Hoarding0.0011355221138%3.7Mediumen
Meeting Points0.0116553911622%5.7Harden
Shortlex0.00540216240%3.2Mediumen
Space Mail0.1045174422030%4.4Mediumen
UTF-80.0012488337042%2.2Easyen