2021 Mid-Atlantic USA Regional Contest
Problems
| Name | Solved / Tries | Average tries | Average tries to solve | |
|---|---|---|---|---|
| A | Espresso! | 99/276 (36%) | 2.51 | 2.16 |
| B | Ultimate Binary Watch | 101/228 (44%) | 2.15 | 2.01 |
| C | Concert Rehearsal | 10/206 (5%) | 2.78 | 2.30 |
| D | Land Equality | 33/181 (18%) | 3.23 | 3.12 |
| E | Even Substrings | 2/39 (5%) | 2.44 | 1.50 |
| F | Bracket Pairing | 11/57 (19%) | 2.19 | 2.09 |
| G | Parking Lot | 2/12 (17%) | 2.00 | 2.00 |
| H | Subprime | 39/127 (31%) | 2.15 | 2.03 |
| I | Word Puzzle | 8/34 (24%) | 2.27 | 1.75 |
| J | Code Guessing | 89/233 (38%) | 2.33 | 2.36 |
| K | Tree Number Generator | 1/12 (8%) | 2.00 | 1.00 |
| L | Lone Rook | 3/19 (16%) | 3.17 | 2.33 |
| M | Stream Lag | 67/152 (44%) | 1.77 | 1.22 |