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Language/Type: C++ queue collections STL
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Write a function named stutter that accepts a reference to a queue of integers as a parameter and replaces every element with two copies of itself. For example, if a queue named q stores {1, 2, 3}, the call of stutter(q); should change it to store {1, 1, 2, 2, 3, 3}.

Constraints: Do not use any auxiliary collections as storage.

Function: Write a C++ function as described, not a complete program.

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