import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def peakIndexInMountainArray(self, arr: List[int]) -> int:
    l = 0
    r = len(arr) - 1

    while l < r:
      m = (l + r) // 2
      if arr[m] < arr[m + 1]:
        l = m + 1
      else:
        r = m

    return l

new Solution().peakIndexInMountainArray()