[Leet Code] Uncommon Words from Two Sentences

Leetcode: https://leetcode.com/problems/uncommon-words-from-two-sentences/

Problem:

We are given two sentences A and B. (A sentence is a string of space separated words. 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.

Return a list of all uncommon words.

You may return the list in any order.

Example 1:

Input: A = "this apple is sweet", B = "this apple is sour"
Output: ["sweet","sour"]

Example 2:

Input: A = "apple apple", B = "banana"
Output: ["banana"]

Note:

1. 0 <= A.length <= 200
2. 0 <= B.length <= 200
3. A and B both contain only spaces and lowercase letters.

Solution:

class Solution(object):
    def uncommonFromSentences(self, A, B):
        """
        :type A: str
        :type B: str
        :rtype: List[str]
        """
        answers = {}
        A = A.split(" ")
        B = B.split(" ")
        lol = A + B
        for i in lol:
            if i in answers:
                answers[i] = answers[i] + 1
            else:
                answers[i] = 1
                
        
        answers_final = []
        
        for i in answers.items():
            if i[1] == 1:
                answers_final.append(i[0])
        return answers_final