Problems from 2019 Atlantic Canadian Preliminary Contest

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
ARMPIT Computations0.003031158372%4.2Mediumen
Happy and Unhappy Numbers0.001761359268%5.1Mediumen
Largest Hoarding0.0011322718581%3.6Mediumen
Meeting Points0.01165895966%4.8Mediumen
Shortlex0.003615213388%3.2Mediumen
Space Mail0.094441198269%4.4Mediumen
UTF-80.0012436533291%2.1Easyen