3110-ScoreOfAString.go

package main

// 3110. Score of a String
// 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.

import "fmt"

func scoreOfString(s string) int {
    abs := func(x int) int { if x < 0 { return -x; }; return x; }
    sum := 0
    for i := 1; i < len(s); i++ {
        sum += abs(int(s[i - 1] - 'a') - int(s[i] - 'a'))
    }
    return sum
}

func main() {
    // 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.
    fmt.Println(scoreOfString("hello")) // 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.
    fmt.Println(scoreOfString("zaz")) // 50
}