Problems from 2019 Atlantic Canadian Preliminary Contest

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
ARMPIT Computations0.003031168372%4.3Mediumen
Happy and Unhappy Numbers0.001761369368%5.0Mediumen
Largest Hoarding0.0011322718581%3.6Mediumen
Meeting Points0.01165895966%4.8Mediumen
Shortlex0.003615313488%3.2Mediumen
Space Mail0.094441198269%4.4Mediumen
UTF-80.0012436833491%2.1Easyen