instead of creating a class and object , cant we simplly create a carcompare function?
Priority Queue STL - II Functors
Hello @Shreya-Gupta-2383169445069382,
The reason to use a functor over function is to use operator overloading to define the priority.
The reason of using operator overloading is to automatically apply the sorting logic during the time when an element is entered to the priority_queue which is not possible in the case of normal function.
A functor (or function object) is a C++ class that acts like a function. Functors are called using the same old function call syntax. To create a functor, we create a object that overloads the operator().
Hope, this would help.
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