1347 - Minimum Number of Steps to Make Two Strings Anagram.

Medium

You are given two strings of the same length s and t. In one step you can choose any character of t and replace it with another character.

Return the minimum number of steps to make t an anagram of s.

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

Example 1:

Input: s = "bab", t = "aba"

Output: 1

Explanation: Replace the first 'a' in t with b, t = "bba" which is anagram of s.

Example 2:

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

Output: 5

Explanation: Replace 'p', 'r', 'a', 'i' and 'c' from t with proper characters to make t anagram of s.

Example 3:

Input: s = "anagram", t = "mangaar"

Output: 0

Explanation: "anagram" and "mangaar" are anagrams.

Constraints:

• <code>1 <= s.length <= 5 * 10⁴</code>

• s.length == t.length

• s and t consist of lowercase English letters only.