void insert(Heap *h, int x)
{
	int i;
	if(h->capacity == h->size)
		resize(h);
	i = h->size;
	h->size++;
	
	
	while(i >= 0 && x > h->vec[parent(h,i)])
	{
		h->vec[i] = h->vec[parent(h,i)];
		i = parent(h,i);
	}
	h->vec[i] = x;
}