LeetCode() Super Ugly Number

用了优先队列，还是超时

class Solution {
public:
    int nthSuperUglyNumber(int n, vector<int>& primes) {
        	priority_queue<int,std::vector<int>,std::greater<int> > pq;
	pq.push(1);
	int i=1;
	int t;
	while(i<=n){
		if(t == pq.top())
		{
			pq.pop();
			continue;
		}
		t=pq.top();
		pq.pop();
		for(auto k:primes)
		    pq.push(t*k);
		i++;
	//	cout<<t<<" ";
	}
	return t;
    }
};