A system has the following characteristics:

There are three processes called P$1,$ P$2,$ & P$3.$

There are three resource types R$1,$ R$2,$ & R$3,$ and there is a single instance of each resource type.

R$1$ has been allocated to P$1,$ R$2$ has been allocated to P$3,$ and R$3$ has been allocated to P$2.$

P$2$ is waiting for R$1,$ P$1$ is waiting for R$2,$ and P$3$ is waiting for R$3.$