2020 NA Regionals Practice Contest 15
Problems
Name | Solved / Tries | Average tries | Average tries to solve | |
---|---|---|---|---|
A | Array of Discord | 28/109 (26%) | 1.88 | 2.18 |
B | Big Brother | 4/22 (18%) | 2.20 | 2.50 |
C | Coin Stacks | 31/100 (31%) | 1.79 | 2.16 |
D | Dams in Distress | 39/69 (57%) | 1.44 | 1.46 |
E | Exhaustive Experiment | 2/9 (22%) | 1.80 | 1.50 |
F | Film Critics | 12/30 (40%) | 1.36 | 1.50 |
G | Gig Combinatorics | 37/89 (42%) | 1.71 | 1.43 |
H | Hiring and Firing | 1/46 (2%) | 2.56 | 1.00 |
I | Infection Estimation | 0/9 (0%) | 3.00 | -- |
J | Joining Flows | 17/55 (31%) | 1.67 | 1.35 |
K | Keep Calm And Carry Off | 13/53 (25%) | 1.71 | 1.85 |
L | Language Survey | 0/0 (0%) | -- | -- |
M | Methodic Multiplication | 54/76 (71%) | 1.25 | 1.19 |