884. Uncommon Words from Two Sentences
Easy
A sentence is a string of single-space separated words where each word consists only of lowercase letters.
A word is uncommon if it appears exactly once in one of the sentences, and does not appear in the other sentence.
Given two sentences s1 and s2, return a list of all the uncommon words. You may return the answer in any order.
Example 1:
Example 2:
Constraints:
- 1 <= s1.length, s2.length <= 200
- s1 and s2 consist of lowercase English letters and spaces.
- s1 and s2 do not have leading or trailing spaces.
- All the words in s1 and s2 are separated by a single space.