Priority queue STL - 2

#1

In comparator class PersonComp{
public:
bool operator( )(Person p1, Person p2){
return p1.age < p2.age;
}
}

Why we are overloading the ( ) operator?

#2

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#3

hello @a19JE0093
priority queue will use these overloaded operator to decide the ordering of elements.
and why we explicity overloading it ,and adding our own comparision logic.