My-LeetCode-Solvings

C# Code Challenges Solved on LeetCode

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389. Find the Difference

Level:

Language: C#

Topic: Bit Manipulation

Unit Tests:

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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”

Constraints:

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