cin >> n; for (int i(1); i<=n; ++i) cin >> a[i]; lim = *min_element(a+1, a+n+1);
for (int l(1), r; l<=lim; l=r+1){
	r = lim; for (int i(1); i<=n; ++i) r = min(r, (int)(a[i]/(a[i]/l)));
}

是 $O(n\sqrt V)$ 还是 $O(n^2\sqrt V)$？