This program illustrates how to define a priority_queue object with the
priority determined by a built-in "function object", and also how to alter
the underlying container used by the priority_queue object.
Press Enter to continue ...

The priority queue pq1 contains 5 values.
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Here they are, in priority order:
Popping 11
Popping 19
Popping 27
Popping 35
Popping 46
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The priority queue pq2 contains 5 values.
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Here they are, in priority order:
Popping 1.1
Popping 1.9
Popping 2.7
Popping 3.5
Popping 4.6
Press Enter to continue ...