C++ Queue emplace() Function
C++ Queue emplace() function adds a new element at the end of the queue, following the current back element. The function performs the insertion operation on the queue.
args: The parameter forwards the argument for the construction of a new element. It specifies the value of the newly constructed element, which is to be inserted at the end position.
The function is used only for the addition of new elements and does not return any value.
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One call is made to the emplace_back.
All the elements present in the queue are modified, as with the addition of a new element the respective positions of all the other elements are also changed.
Guarantee as equivalent to the operations that are performed on the underlying container object is provided.