hdu杭电1434 幸福列车【优先队列】

3 5
2
xhd 0
zl 1
2
8600 1
ll 2
1
Ignatius 3
GETOUT 1
JOIN 1 2
GETOUT 1
GETON 3 hoho 2
GETOUT 3

xhd
zl
hoho

Hint
Huge input, scanf is recommended. 
 

#include<cstdio>
#include<cstring>
#include<queue>
#define max 10000+100
using namespace std;
struct train
{
	char name[22];
	int rp;
	friend bool operator < (train a,train b)
	{
		if(a.rp==b.rp)
		{
			return strcmp(a.name,b.name)<0;
		}
		return a.rp>b.rp;//从小到大排列 队伍 
	}
};
train temp;
int main()
{
	int n,m,p;//n辆车，m条命令
	int i,j;
	int num,num1,num2;
	char str[10];
	while(~scanf("%d%d",&n,&m))
	{
		priority_queue<train>q[max];
		
		for(i=1;i<=n;++i)
		{
			scanf("%d",&p);
			while(p--)
			{
				scanf("%s %d",temp.name,&temp.rp);
				q[i].push(temp);
			}
		}
		while(m--)
		{
			scanf("%s",str);
			if(strcmp(str,"GETOUT")==0)
			{
				scanf("%d",&num);
				temp=q[num].top();
				if(!q[num].empty())//出队列之前一定要判断非空 
				{
					printf("%s\n",temp.name);
					q[num].pop();
				}
			}
			else if(strcmp(str,"GETON")==0)
			{
				scanf("%d",&num);
				scanf("%s %d",temp.name,&temp.rp);
				q[num].push(temp);
			}
			else if(strcmp(str,"JOIN")==0)
			{
				scanf("%d%d",&num1,&num2);
				while(!q[num2].empty())
				{
					temp=q[num2].top();
					q[num2].pop();
					q[num1].push(temp);
				}				
			}
		}		
	}
	return 0;
}

hdu杭电1434 幸福列车【优先队列】

原文：http://blog.csdn.net/yuzhiwei1995/article/details/47109993