### Etherite's blog

By Etherite, history, 5 weeks ago,

The test case

1 4 1 2 1 2

is accepted as a valid hack for problem A, but it clearly violates the constraints (It is guaranteed that all the numbers except one in the a array are the same). Could the problemsetters please fix this and rejudge A submissions?

• +102

 » 5 weeks ago, # |   +28 The same for G now. It doesn't check $1 \leq c \leq 10^7$, so a number like $2 \cdot 10^7$ is valid and can cause runtime errors galore.
•  » » 5 weeks ago, # ^ |   -8 Problem G already exists.Original G. Don't know how the Authors didn't notice it.