new_contents: class Solution:
      # @param {integer} x
      # @return {integer}
      def mySqrt(self, x):
          left, right = 0, x / 2 + 1
          while left <= right:
              m = (left + right) / 2
              sq = m * m
              if sq == x:
                  return m
              elif sq < x:
                  left = m + 1
              else:
                  right = m - 1
          return right
  
subject: Create Sqrt_002.py