Problems from ICPC North America Championship 2021

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
AND Permutation0.0813419511358%6.6Harden
Apple Orchard1.214775241042%8.4Harden
Cleaning Robot0.5399821716275%7.1Harden
Contest Construction0.0019026922182%4.8Mediumen
Ketek Counting0.061001564071%7.4Harden
Mountainous Palindromic Subarray0.0211731227588%3.8Mediumen
Permutation CFG0.192208331855%7.9Harden
Special Cycle0.002440611016%9.5Harden
The King's Guards0.022541261454%7.9Harden
The Paladin0.0038517114887%4.7Mediumen
Token Game0.201083544074%7.3Harden
TraveLog0.16108915111576%7.0Harden
You be The Judge, Again0.0240130927689%3.4Mediumen