Introduction

In this blog post, we will explore how to solve the LeetCode problem "3110" using AI. LeetCode is a popular platform for preparing for coding interviews, and with the help of AI tools like Chatmagic, we can generate solutions quickly and efficiently - helping you pass the interviews and get the job offer without having to study for months.

Problem Statement

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.

Explanation

Here's the breakdown of the approach and the Python code:

• Approach:

  • Iterate through the string, calculating the absolute difference between the ASCII values of adjacent characters.
  • Accumulate these differences into a running score.
  • Return the final score.

• Complexity:

  • Runtime Complexity: O(n), where n is the length of the string.
  • Storage Complexity: O(1).

Code

    def string_score(s):
    """
    Calculates the score of a string based on the absolute difference
    between ASCII values of adjacent characters.

    Args:
        s: The input string.

    Returns:
        The score of the string.
    """
    score = 0
    for i in range(len(s) - 1):
        score += abs(ord(s[i]) - ord(s[i+1]))
    return score