what is priority queue code example
Example 1: implemetation of priority queue in c++
// Implementation of priority_queue in c++
//queue with elements in decreasing order
priority_queue<int> pq;
// queue with elements in increasing order using compare function inside declaration
priority_queue <int, vector<int>, greater<int> > pq;
//priority_queue of type pair<int, int>
#define pp pair<int, int>
priority_queue <pp, vector<pp>, greater<pp> > pq;
Example 2: priority_queue
std::priority_queue<int, std::vector<int>, std::greater<int>>