LeetCode： Three Consecutive Odds

Question

Given an integer array arr, return true if there are three consecutive odd numbers in the array. Otherwise, return false.

Example 1:

Input: arr = [2,6,4,1]

Output: false

Explanation: There are no three consecutive odds.

Example 2:

Input: arr = [1,2,34,3,4,5,7,23,12]

Output: true

Explanation: [5,7,23] are three consecutive odds.

Solution

def three_consecutive_odds(arr)
  odd_counter = 0
  arr.each do |num|
    if num.odd?
      odd_counter += 1
    else
      odd_counter = 0
    end
    return true if odd_counter == 3
  end
  return false
end