[LeetCode] 389. Find the Difference - 문제풀이
Description s문자열을 무작위로 섞은뒤 하나의문자열을 추가해 만든 t가 있을때 추가된 문자를 구하는 문제입니다. 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" Constra..
