Problems from 2019 Atlantic Canadian Preliminary Contest

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
ARMPIT Computations0.003032649335%4.3Mediumen
Happy and Unhappy Numbers0.0125654915729%4.7Mediumen
Largest Hoarding0.0011358121737%3.6Mediumen
Meeting Points0.0116557312822%4.4Mediumen
Shortlex0.00543916838%3.0Mediumen
Space Mail0.1044476922830%4.0Mediumen
UTF-80.0012490938242%2.1Easyen