LeetCode solutions

3450. Find the Child Who Has the Ball After K Seconds

My accepted Python solution to LeetCode problem 3450, Find the Child Who Has the Ball After K Seconds, running in 0ms.

  • Difficulty: Easy
  • Python
  • Runtime 0ms
  • Memory 17.2MB

Read the problem on LeetCode View on GitHub

Python

Accepted on LeetCode — runtime 0ms, memory 17.2MB, accepted 2025-12-29.

python
class Solution:
    def numberOfChild(self, n: int, k: int) -> int:
        period = 2 * (n - 1)
        k = k % period
        if k < n:
            return k
        else:
            return period - k

Source