Learn AI Create the Future — with Pranay
Main site

LeetCode solutions

1781. Check If Two String Arrays are Equivalent

My accepted Python solution to LeetCode problem 1781, Check If Two String Arrays are Equivalent, running in 0ms.

  • Difficulty: Easy
  • Python
  • Runtime 0ms
  • Memory 17.3MB

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 0ms, memory 17.3MB, accepted 2025-12-29.

python
class Solution:
    def arrayStringsAreEqual(self, word1: List[str], word2: List[str]) -> bool:
        # Concatenate both and compare
        # Time: O(n + m), Space: O(n + m) where n, m are total chars
        return ''.join(word1) == ''.join(word2)

Source