Problems from ICPC North America Championship 2021

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
AND Permutation0.0913472714119%6.4Harden
Apple Orchard1.4555551331713%7.9Harden
Cleaning Robot0.53111375216822%7.2Harden
Contest Construction0.0019045122851%4.8Mediumen
Ketek Counting0.0610011745532%7.3Harden
Mountainous Palindromic Subarray0.0211777629838%3.9Mediumen
Permutation CFG0.252906801822%8.2Harden
Special Cycle0.0024404414811%9.2Harden
The King's Guards0.022541134129%8.2Harden
The Paladin0.0038535714942%4.7Mediumen
Token Game0.2011751574529%7.2Harden
TraveLog0.16158870213119%7.2Harden
You be The Judge, Again0.0356758927447%3.5Mediumen