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

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ant Typing0.0127043025459%5.9Harden
Bad Packing0.0028732815447%7.5Harden
Basic Basis0.00760714868%6.8Harden
Bitonic Ordering0.0440719712061%6.7Harden
Condorcet0.00708532445%8.1Harden
Derangement Rotations0.00102604778%6.0Harden
Dominating Duos0.037633419659%6.2Harden
Exam Manipulation0.0011968150274%3.7Mediumen
Exciting Tournament0.002153554073%6.7Harden
Kth Subtree0.0667015010872%5.8Harden
Longest Common Subsequence0.0029335926774%5.1Mediumen
Magic Trick0.00145167493395%1.4Easyen
Missing Number0.0058102778576%3.7Mediumen
No Thanks!0.00661836169092%1.8Easyen
Painted Corridors0.011330724360%8.1Harden
Rainbow Numbers0.0026119112163%6.5Harden
Rating Problems0.00516620637196%1.4Easyen
Smoothie Stand0.008954048790%2.2Easyen
Triangular Collection0.008727120475%5.5Harden
TripTik0.801738835870%7.7Harden
Unread Messages0.005869049271%4.4Mediumen