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LeetCode solutions

3540. Hash Divided String

My accepted Python solution to LeetCode problem 3540, Hash Divided String, running in 19ms.

  • Difficulty: Medium
  • Python
  • Runtime 19ms
  • Memory 17.2MB

Read the problem on LeetCode View on GitHub

The problem statement is LeetCode’s and stays on their site. What follows is my accepted solution.

Python

Accepted on LeetCode — runtime 19ms, memory 17.2MB, accepted 2025-12-29.

python
class Solution:
    def stringHash(self, s: str, k: int) -> str:
        result = []
        n = len(s)
        
        for i in range(0, n, k):
            substring = s[i:i+k]
            hash_sum = sum(ord(c) - ord('a') for c in substring)
            hashed_char = chr(ord('a') + hash_sum % 26)
            result.append(hashed_char)
        
        return ''.join(result)

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