3110_Score_of_a_String.cpp

/*
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.
*/
/*
    Time Complexity o(n)
    Space Complexity o(1)
*/
class Solution {
public:
    int scoreOfString(string s) {
        int ans = 0;
        for(int i=0;i<s.length()-1;i++){
            ans+= abs(int(s[i]) - int(s[i+1]));
        }
        return ans;
    }
};
//-----------------------------------------------------------------------------------//
class Solution {
public:
    int scoreOfString(string s) {
        int score = 0 ;
        for(int i = 1;i<s.size();i++){
            int n1 = s[i-1] , n2 = s[i];
            score += abs(n1-n2);
        }
        return score;
    }
};