Consider the following two transactions:
$T_{31}$: $read(A);$
$read(B);$
$if A = 0$ $then$ $B := B + 1;$
$write(B);$
$T_{32}$: $read(B);$
$read(A);$
$if B = 0$ $then$ $A := A + 1;$
$write(A);$
Add lock and unlock instructions to transactions $T_{31}$ and $T_{32}$, so that they observe the two-phase locking protocol. Can the execution of these transactions result in a deadlock ?
