✅✅✅ 1-line solution
\n\nclass Solution:\n    def findPoisonedDuration(self, t: List[int], d: int) -> int:\n        return d+sum(min(t[i+1]-t[i], d) for i in range(len(t)-1))\n
\n```\nclass Solution:\n    def findPoisonedDuration(self, t: List[int], d: int) -> int:\n        return d+sum(min(t[i+1]-t[i], d) for i in range(len(t)-1))\n```
['Python3']