1408. String Matching in an Array

Easy

10 Points

Array

String

String Matching

Given an array of string words, return all strings in words that are a substring of another word. You can return the answer in any order.

Examples

Example 1

Input: words = ["mass","as","hero","superhero"] Output: ["as","hero"] Explanation: "as" is substring of "mass" and "hero" is substring of "superhero". ["hero","as"] is also a valid answer.

Example 2

Input: words = ["leetcode","et","code"] Output: ["et","code"] Explanation: "et", "code" are substring of "leetcode".

Example 3

Input: words = ["blue","green","bu"] Output: [] Explanation: No string of words is substring of another string.

Constraints

1 <= words.length <= 100
1 <= words[i].length <= 30
words[i] contains only lowercase English letters.
All the strings of words are unique.