2186 - Minimum Number of Steps to Make Two Strings Anagram II.

Medium

You are given two strings s and t. In one step, you can append any character to either s or t.

Return the minimum number of steps to make s and t anagrams of each other.

An anagram of a string is a string that contains the same characters with a different (or the same) ordering.

Example 1:

Input: s = "leetcode", t = "coats"

Output: 7

Explanation:

• In 2 steps, we can append the letters in "as" onto s = "leetcode", forming s = "leetcodeas".

• In 5 steps, we can append the letters in "leede" onto t = "coats", forming t = "coatsleede".

"leetcodeas" and "coatsleede" are now anagrams of each other.

We used a total of 2 + 5 = 7 steps.

It can be shown that there is no way to make them anagrams of each other with less than 7 steps.

Example 2:

Input: s = "night", t = "thing"

Output: 0

Explanation: The given strings are already anagrams of each other. Thus, we do not need any further steps.

Constraints:

• <code>1 <= s.length, t.length <= 2 * 10⁵</code>

• s and t consist of lowercase English letters.