小蒟蒻8分求助

#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define fr first
#define se second
#define FAST ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
using namespace std;
int m,n,rig=1;
priority_queue<int,vector<int>,greater<int> > q;
priority_queue<int> Q;
int a[200005]; 
int main(){
	FAST;
	cin>>m>>n;
	for(int i=1;i<=m;i++){
		cin>>a[i];
	}
	for(int i=1;i<=n;i++){
		int u;
		cin>>u;
		for(int j=1;j<=rig;j++){
			q.push(a[i]);
			if(q.size()==i){
				Q.push(q.top());
				q.pop();
			}
		}
		rig=u+1;
		cout<<Q.top()<<endl;
		q.push(Q.top());
		Q.pop();
	}
	return 0;
}