import pyutil as pyu
pyu.get_local_pyinfo()

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

from typing import List

class Solution:
  def firstBadVersion(self, n: int) -> int:
    l = 1
    r = n

    while l < r:
      m = (l + r) >> 1
      if isBadVersion(m):
        r = m
      else:
        l = m + 1

    return l

new Solution().firstBadVersion()