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Consider a non-negative counting semaphore S. The operation P(S) decrements S, and V (S) increments S. During an execution, 20 P(S) operations and 12 V (S) operations are issued in some order. The largest initial value of S for which at least one P(S) operation will remain blocked is ______.

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Correct option is 7

S = -20 + 12 = -8

∴ The largest initial value of S for which at list one P (S) operation remains blocked remains blocked is 7.

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