Pop the Front

A queue<int> named q already holds 10, 20, 30 (10 is at the front).

Remove the front element with q.pop(). Then print the new front value and the number of elements left, one per line, in the exact format shown in Expected Output.

Expected Output:

Front: 20↵
Size: 2↵

= newline. The output ends with a newline — print one after the last line.

Hints3 available

Topics:

STL ContainersQueues

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