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Re:优先队列188MS~~菜鸟求指点~~

Posted by margot at 2011-06-28 18:39:15 on Problem 1442
In Reply To:优先队列188MS~~菜鸟求指点~~ Posted by:GreenBird at 2011-03-22 00:32:28
> #include<cstdio>
> #include<queue>
> using namespace std;
> struct cmp1
> {
> 	bool operator()(const int a,const int b)
> 	{
> 		return a>b;
> 	}
> };
> struct cmp2
> {
> 	bool operator()(const int a,const int b)
> 	{
> 		return a<b;
> 	}
> };
> priority_queue<int,vector<int>,cmp1>q1;
> priority_queue<int,vector<int>,cmp2>q2;
> int a[30000],u,i;
> int main()
> {
> 	int m,n,c=0,t;
> 	scanf("%d%d",&m,&n);
> 	for(i=0;i<m;i++)scanf("%d",&a[i]);
> 	for(i=0;i<n;i++){
> 		scanf("%d",&u);
> 		while(c<u){
> 			q1.push(a[c]);
> 			if(!q2.empty()&&q1.top()<q2.top()){
> 				t=q1.top();
> 				q1.pop();
> 				q1.push(q2.top());
> 				q2.pop();
> 				q2.push(t);
> 			}
> 			c++;
> 		}
> 		printf("%d\n",q1.top());
> 		q2.push(q1.top());
> 		q1.pop();
> 	}
> }

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