max heap c 2b 2b stl 3b

1// C++ program to show that priority_queue is by 
2// default a Max Heap 
3#include <bits/stdc++.h> 
4using namespace std; 
5
6// Driver code 
7int main () 
8{ 
9	// Creates a max heap 
10	priority_queue <int> pq; 
11	pq.push(5); 
12	pq.push(1); 
13	pq.push(10); 
14	pq.push(30); 
15	pq.push(20); 
16
17	// One by one extract items from max heap 
18	while (pq.empty() == false) 
19	{ 
20		cout << pq.top() << " "; 
21		pq.pop(); 
22	} 
23
24	return 0; 
25} 
26