LeetCode in Kotlin

3110. Score of a String

Easy

You are given a string s. The score of a string is defined as the sum of the absolute difference between the ASCII values of adjacent characters.

Return the score of s.

Example 1:

Input: s = “hello”

Output: 13

Explanation:

The ASCII values of the characters in s are: 'h' = 104, 'e' = 101, 'l' = 108, 'o' = 111. So, the score of s would be |104 - 101| + |101 - 108| + |108 - 108| + |108 - 111| = 3 + 7 + 0 + 3 = 13.

Example 2:

Input: s = “zaz”

Output: 50

Explanation:

The ASCII values of the characters in s are: 'z' = 122, 'a' = 97. So, the score of s would be |122 - 97| + |97 - 122| = 25 + 25 = 50.

Constraints:

• 2 <= s.length <= 100
• s consists only of lowercase English letters.

Solution

import kotlin.math.abs

class Solution {
    fun scoreOfString(s: String): Int {
        var sum = 0
        for (i in 0 until s.length - 1) {
            sum += abs(((s[i].code - '0'.code) - (s[i + 1].code - '0'.code)))
        }
        return sum
    }
}

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