题目链接：1629. 按键持续时间最长的键
迭代一次即可。
from typing import List
class Solution:
def slowestKey(self, releaseTimes: List[int], keysPressed: str) -> str:
return max(zip((a - b for a, b in zip(releaseTimes, [0] + releaseTimes[:-1])), keysPressed))[1]