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c++標準庫 std::priority_queue 優先佇列的使用 push() pop() top()

技術標籤:# 4.1 C++c++priority_queue優先佇列std標準庫

#include <iostream>
#include <queue>
#include <vector>
#include <list>
#include <queue>

using namespace std;

void print(double& Ele)
{
	cout<<Ele<<", ";
}

template <class T>
void Out(priority_queue <
T, deque<T>,less<T> >& p) { while(!p.empty()) { cout<<p.top()<<", "; p.pop(); } cout<<endl; } template <class T> void OutG(priority_queue <T, deque<T>,greater<T> >& pg) { while(!pg.empty()) { cout<<
pg.top()<<", "; pg.pop(); } cout<<endl; } void main() { // 從小到大排序優先佇列 priority_queue <double,deque<double>,less<double> >p1,p2; p1.push(11.5); p1.push(22.5); p1.push(32.5); p1.push(21.1); p1.push(15.6); p1.push(8.9); p1.push(55.0); p2=p1; Out
(p1); p1=p2; // 從大到小排序優先佇列 priority_queue <double,deque<double>,greater<double> >p3; while(p2.size()) { p3.push(p2.top()); p2.pop(); } OutG(p3); }

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