2021 NA Regionals Practice Contest 8
Problems
| Name | Solved / Tries | Average tries | Average tries to solve | |
|---|---|---|---|---|
| A | Array of Discord | 10/45 (22%) | 2.65 | 2.20 |
| B | Big Brother | 3/3 (100%) | 1.00 | 1.00 |
| C | Coin Stacks | 9/36 (25%) | 3.27 | 3.22 |
| D | Dams in Distress | 7/12 (58%) | 1.71 | 1.71 |
| E | Exhaustive Experiment | 1/4 (25%) | 2.00 | 1.00 |
| F | Film Critics | 3/10 (30%) | 2.50 | 2.67 |
| G | Gig Combinatorics | 12/19 (63%) | 1.46 | 1.50 |
| H | Hiring and Firing | 0/0 (0%) | -- | -- |
| I | Infection Estimation | 1/3 (33%) | 3.00 | 3.00 |
| J | Joining Flows | 5/16 (31%) | 2.67 | 2.60 |
| K | Keep Calm And Carry Off | 3/11 (27%) | 3.67 | 3.67 |
| L | Language Survey | 0/4 (0%) | 1.33 | -- |
| M | Methodic Multiplication | 13/17 (76%) | 1.21 | 1.23 |