Unable to understand syntax for minheap

#1

why is the syntax as follows: ,
priority_queue<int,vector,greater> pq;
why is vector used?

#2

@mayankA47 priority_queue of STL supports a constructor that requires 2 extra arguments to make it a min heap. The two extra arguments are vector < int > , greater < int >. So in order to use min heap from c++ standard template library, you will have to use such syntax. If the extra arguments are not used, by default a max-heap would be formed.

#3

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