题目内容

若有一个仓库，可以存放P1、P2 两种产品，但是每次只能存放一种产品。要求： ① w= P1 的数量 – P2 的数量 ② – i < w < k （i、k 为正整数）若用 PV 操作实现P1 和P2 产品的入库过程，至少需要（23）个同步信号量及（24）个互斥信号量，其中，同步信号量的初值分别为（25），互斥信号量的初值分别为（26）。（25）处填（）。

A. 0
B. i，k，0
C. i，k
D. i–1，k–1

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