2020 NA Regionals Practice Contest 11
Problems
| Name | Solved / Tries | Average tries | Average tries to solve | |
|---|---|---|---|---|
| A | Bitwise | 22/82 (27%) | 3.04 | 2.55 |
| B | Conveyor Belts | 28/74 (38%) | 2.18 | 1.82 |
| C | Free Food | 99/136 (73%) | 1.31 | 1.22 |
| D | Hoppers | 57/120 (48%) | 1.74 | 1.70 |
| E | Largest Triangle | 28/284 (10%) | 5.80 | 3.93 |
| F | Magical String | 2/28 (7%) | 3.11 | 3.00 |
| G | Non-Prime Factors | 68/379 (18%) | 4.26 | 3.41 |
| H | Prolonged Password | 9/31 (29%) | 2.82 | 2.11 |
| I | Rectangular City | 11/36 (31%) | 3.27 | 3.27 |
| J | SG Coin | 72/137 (53%) | 1.90 | 1.90 |
| K | Sliding Blocks | 7/23 (30%) | 2.09 | 2.00 |
| L | Wi Know | 20/73 (27%) | 2.35 | 1.95 |