About making a compare function in priority queue

[Xeroken]

How do we create a compare function object to use in the priority queue? I keep getting told that it requires a class 'Compare' field.

[Marina-t]

can use a class or a lambda expression. I found these 2 resources helpful: https://stackoverflow.com/questions/16111337/declaring-a-priority-queue-in-c-with-a-custom-comparator http://neutrofoton.github.io/blog/2016/12/29/c-plus-plus-priority-queue-with-comparator/