Problems from 2020 ICPC North America Regionals (March 6 2021)

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ant Typing0.0127044726359%5.9Harden
Bad Packing0.0028734616748%7.4Harden
Basic Basis0.00760704767%7.2Harden
Bitonic Ordering0.0440720412461%6.8Harden
Condorcet0.00708542546%8.3Harden
Derangement Rotations0.00102604778%6.5Harden
Dominating Duos0.037635121361%5.9Harden
Exam Manipulation0.0011969351174%3.7Mediumen
Exciting Tournament0.002153574274%7.0Harden
Kth Subtree0.0667015611473%5.8Harden
Longest Common Subsequence0.0029346735877%4.0Mediumen
Magic Trick0.00145209497295%1.4Easyen
Missing Number0.0058103779376%3.7Mediumen
No Thanks!0.00661855171192%1.7Easyen
Painted Corridors0.011330734460%8.2Harden
Rainbow Numbers0.0026119612664%6.4Harden
Rating Problems0.00516727647896%1.3Easyen
Smoothie Stand0.008959253090%2.3Easyen
Triangular Collection0.008727620976%5.4Mediumen
TripTik0.441738896371%7.4Harden
Unread Messages0.005870049971%4.5Mediumen