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

#### QUESTION:

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:

``````1 <= s.length, t.length <= 2 * 105
s and t consist of lowercase English letters.
``````

#### SOLUTION:

``````class Solution {
func minSteps(_ s: String, _ t: String) -> Int {
var arrS: [Int] = Array(repeating: 0, count: 26)
var arrT: [Int] = Array(repeating: 0, count: 26)
for str in s {
arrS[Int(str.asciiValue!) - 97] += 1
}
for str in t {
arrT[Int(str.asciiValue!) - 97] += 1
}
var result = 0
for i in 0...25 {
result += abs(arrS[i] - arrT[i])
}
return result
}
}
``````