Exercise 18: consensus and Paxos unsafety

[dag7dev]

Exercise 18: Assume that you remove the property that every round is associate to a unique proposer. After collecting a quorum of $n-f$ promises (where $n$ is the number of acceptors and $f$ is such that $n=2f+1$), the proposer chooses one of the values voted in max round in the promises (of course it is not unique, the proposer chooses just one in an arbitrary way). Show that Paxos is not safe any more.

[susannacifani]

What do you think about the solution on Drive?
It looks kinda right, but I'm not really sure about that