LeetCode solutions

1547. Destination City

My accepted Python solution to LeetCode problem 1547, Destination City, running in 0ms.

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

Read the problem on LeetCode View on GitHub

Python

Accepted on LeetCode — runtime 0ms, memory 17.3MB, accepted 2025-12-29.

python
class Solution:
    def destCity(self, paths: List[List[str]]) -> str:
        sources = set(path[0] for path in paths)
        for path in paths:
            if path[1] not in sources:
                return path[1]

Source