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Que. The initial configuration of a queue is a, b, c, d, ('a' is in the front end). To get the configuration d, c, b, a, one needs a minimum of
a. 2 deletions and 3 additions
b. 3 deletion and 2 additions
c. 3 deletions and 3 additions
d. 3 deletions and 4 additions
Answer:3 deletions and 3 additions
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