441. Arranging Coins

https://leetcode.com/problems/arranging-coins

Python

class Solution:
    def arrangeCoins(self, n: int) -> int:
        row_counts = 0
        counter = 1

        while n > 0:
            if n - counter >= 0:
                row_counts += 1

            n -= counter
            counter += 1

        return row_counts