#211Hard· asked at 3 companies
Concatenated Words
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What we know
Example 1
Input: words = ["cat","cats","catsdogcats","dog","dogcatsdog","hippopotamuses","rat","ratcatdogcat"] Output: ["catsdogcats","dogcatsdog","ratcatdogcat"]
Example 2
Input: words = ["cat","dog","catdog"] Output: ["catdog"]
Constraints
- •
1 <= words.length <= 10^4 - •
1 <= words[i].length <= 30 - •
words[i]consists of only lowercase English letters. - •
All the strings of
wordsare unique.