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

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ant Typing0.0127045527059%5.8Harden
Bad Packing0.0028735717348%7.3Harden
Basic Basis0.00760735068%6.8Harden
Bitonic Ordering0.0440721313262%6.7Harden
Condorcet0.00708602847%8.5Harden
Derangement Rotations0.00102635079%6.2Harden
Dominating Duos0.037636322562%5.7Harden
Exam Manipulation0.0011972754275%3.6Mediumen
Exciting Tournament0.002153604575%6.7Harden
Kth Subtree0.0667016712374%5.5Harden
Longest Common Subsequence0.0029349939078%3.9Mediumen
Magic Trick0.00145282504195%1.4Easyen
Missing Number0.0058105881277%3.5Mediumen
No Thanks!0.00662039188392%1.7Easyen
Painted Corridors0.011330744561%8.4Harden
Rainbow Numbers0.0026121514266%6.2Harden
Rating Problems0.00516903665096%1.3Easyen
Smoothie Stand0.008963356589%2.3Easyen
Triangular Collection0.008728822177%5.2Mediumen
TripTik0.441738926470%7.8Harden
Unread Messages0.005870950872%4.3Mediumen