working of comparator function in priority queue

Question

I don't understand the sorting order set by the comparator function.

This is the code of the comparator parameter passed to the priority queue:

struct CompareHeight { 
    bool operator()(Person const& p1, Person const& p2) 
    {  
        return p1.height < p2.height; 
    } 
}; 

This is giving output in decreasing order of height

example output: 6 5 4 3 2

Shouldn't be output like : 2 3 4 5 6

Answer 1

A priority_queue always starts with the largest element (highest priority), see e.g. here.