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Description

Message queue is the basic fundamental of windows system. For each process, the system maintains a message queue. If something happens to this process, such as mouse click, text change, the system will add a message to the queue. Meanwhile, the process will do a loop for getting message from the queue according to the priority value if it is not empty. Note that the less priority value means the higher priority. In this problem, you are asked to simulate the message queue for putting messages to and getting message from the message queue.

Input

There's only one test case in the input. Each line is a command, "GET" or "PUT", which means getting message or putting message. If the command is "PUT", there're one string means the message name and two integer means the parameter and priority followed by. There will be at most 60000 command. Note that one message can appear twice or more and if two messages have the same priority, the one comes first will be processed first.(i.e., FIFO for the same priority.) Process to the end-of-file.

Output

For each "GET" command, output the command getting from the message queue with the name and parameter in one line. If there's no message in the queue, output "EMPTY QUEUE!". There's no output for "PUT" command.

Sample Input

GETPUT msg1 10 5PUT msg2 10 4GETGETGET

Sample Output

EMPTY QUEUE!msg2 10msg1 10EMPTY QUEUE!

题意：

就是PUT代表输入队列，get代表输出队列，如果队列是空的就输出EMPTY   QUEUE!否则输出内容，put后跟着三个信息，第三个是优先级，优先级大的反而小，优先级相同，输出先出现的

分析：

用优先队列就行

代码：

#include<bits/stdc++.h>using namespace std;struct can{    string a,b;    long int c;    bool operator<(const can h)const    {        return c>h.c;    }};int main(){    string s;    priority_queue<can>v;    can f;    while(cin>>s)    {        if(s=="GET"&&v.size()==0)            cout<<"EMPTY QUEUE!"<<endl;        else            if(s=="GET")        {            cout<<v.top().a<<" "<<v.top().b<<endl;            v.pop();        }        else        {            cin>>f.a>>f.b>>f.c;            v.push(f);        }    }}

感受：

我感觉这是有史以来叫我最憋屈的题我按照题目要求控制输入的个数竟然不能通过，我交了6遍没有过，然后把控制输入量的删了就过了。。。真是气死我了