The following is a solution to solve the shared account balance problem.

Proc $0()($

proc $1()|$

$/$ Enter the CS $*/$ P$($mutex$)$; balance V$($mutex$)$; amount

$/$ Enter the CS $*/$ P$($mutex$)$; balance V$($mutex$)$; amount

semaphore mutex $11$

fork $($proc $0\mathrm{.}011$ fork $($proc $1,$ suppose we change the line "semaphore mutex $=1$;$"$ to "semaphore mutex $=2$;$".$ Is the solution still correct? Please briefly explain.