Add Minimum Number of Rungs LeetCode solution in Python

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class Solution:
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    def addRungs(self, rungs: List[int], dist: int) -> int:
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        rungs = [0] + rungs
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        i, ans = 1, 0
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        while i < len(rungs):
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            if rungs[i] - rungs[i - 1] > dist:
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                ans += ceil((rungs[i] - rungs[i - 1]) / dist) - 1
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            i += 1
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        return ans