Description of the Problem

You are given two strings s and t.
String t is generated by random shuffling string s and then add one more letter at a random position.
Return the letter that was added to t.

Example 1:
Input: s = "abcd", t = "abcde"
Output: "e"
Explanation: 'e' is the letter that was added.

Example 2:
Input: s = "", t = "y"
Output: "y"

Example 3:
Input: s = "a", t = "aa"
Output: "a"

Example 4:
Input: s = "ae", t = "aea"
Output: "a"

Constraints:

• 0 <= s.length <= 1000
• t.length == s.length + 1
• s and t consist of lower-case English letters.

Code

class Solution: def findTheDifference(self, s: str, t: str) -> str: 

Link To The LeetCode Problem

LeetCode