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Exercise 1

Below we have given you an array and a number. Write a program that checks to see if the number appears in the array.

arr = [1, 3, 5, 7, 9, 11]
number = 3

Solution

arr.each do |num|
  if num == number
    puts "#{number} is in the array."
  end
end

# ... or...
if arr.include?(number)
  puts "#{number} is indeed in the array."
end

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