Problems from 2019 Atlantic Canadian Preliminary Contest

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
ARMPIT Computations0.003031268668%5.3Mediumen
Happy and Unhappy Numbers0.001761369469%4.9Mediumen
Largest Hoarding0.0011322918782%3.5Mediumen
Meeting Points0.01165906067%4.7Mediumen
Shortlex0.003615613888%3.0Mediumen
Space Mail0.094441198269%4.5Mediumen
UTF-80.0012436933591%2.1Easyen