RubyでLeetCodeを解いてみた Palindrome Number

Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward.

# @param {Integer} x
# @return {Boolean}
def is_palindrome(x)
  return false if x.negative?
  if x.positive?
    arr = x.to_s.chars
    size = arr.size
    arr.each_with_index do |ele, idx|
      return false if ele != arr[size - idx - 1]
    end
    return true
  end
  return true if x.zero?
end

Coud you solve it without converting the integer to a string?

文字列に変換しないパターンは思いつかなかった🙃