优先队列

/*

num = q.top();

其余同队列

定义：

//priority_queue<int,vector<int>,less<int> > pque;//less<int>  greater<int>后面不加括号
   priority_queue<int,vector<int>,cmp> pque;

*/

#include<stdlib.h>
#include<string.h>
#include<iostream>
#include<queue>
using namespace std;
int n,m;
int num;
struct cmp
{
    bool operator()(int &a,int &b)
    {
        return a<b;
    }

};
priority_queue<int,vector<int>,cmp> que;

int main()
{
    int i,j;
    while(1){
      cin>>n>>m;
      if(n==0&&m==0)
         break;
    for(i=0;i<n;i++)
    {
        cin>>num;
        que.push(num);
    }

      for(j=0;j<m;j++)
      {
          int top=que.top();
          que.pop();
          if(j==0) cout<<top;
          else cout<<" "<<top;
      }

        cout<<endl;

    }
    return 0;
}

优先队列

原文：http://www.cnblogs.com/unknownname/p/7792692.html