sn_compare_priority_queue.cpp

#include <iostream>
#include <queue>
#include <vector>
using namespace std;
 
struct Larger {
  bool operator() (int a, int b) {
    return a < b;
  }
};
typedef std::priority_queue<int, std::vector<int>, Larger> rpqueue;
 
int main() {
 
	rpqueue rpq;
 
	rpq.push(3);
	rpq.push(1);
	rpq.push(2);
 
	while(pq.size() > 0) {
		cout << rpq.top() << endl;
		rpq.pop();
	}
 
	return 0;
}