1408. String matching in an array

//1408. String matching in an array

class Solution {
    public List<String> stringMatching(String[] words) {
        int n = words.length;
        List<String> ans = new ArrayList<>();

        for(int i = 0; i < n; ++i) {
            for(int j = 0; j < n; ++j) {
                if(i != j && words[j].contains(words[i])) {
                    ans.add(words[i]);
                    break;
                }
            }
        }

        return ans;
    }
}