Problems from ICPC North America Championship 2021

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
AND Permutation0.0813489316118%6.8Harden
Apple Orchard1.2147751621912%7.9Harden
Cleaning Robot0.5399884618622%7.3Harden
Contest Construction0.0019049924649%4.8Mediumen
Ketek Counting0.0610012045527%8.1Harden
Mountainous Palindromic Subarray0.0211782431438%3.9Mediumen
Permutation CFG0.2529061131917%8.0Harden
Special Cycle0.0024404845010%9.4Harden
The King's Guards0.022541161127%8.4Harden
The Paladin0.0038542116539%4.7Mediumen
Token Game0.2010832075929%7.4Harden
TraveLog0.16108979813917%6.9Harden
You be The Judge, Again0.0240173029941%3.5Mediumen