Process Synchronisation

Question

Consider the following program:

Const int n= 20
int Count= 0
Void GATE( )
{
int i; for(i= 1 to n)
Count= Count + 1;
}
Main ( )
{
Par begin
GATE( );
GATE( );
GATE( );
Par end
}
What is the minimum and maximum possible value of count after the completion of the program?

Comments

Minimum = 2 and Maximum = 60 is correct... Thanks everyone :)

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@Anu007 sir,Is there only this one way of context switching or other might exist too giving right answer ?

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can u explain how min=2?