TheAlgorithms-Ruby/maths/number_of_digits.rb

# Given a number, find number of digits in it.

def count_digits(n)
    count = 0
    temp = n
    
    if (n == 0)
        return 1
    end
    
    until temp.zero?
        count += 1
        temp /= 10
    end
    
    return count
end

puts "Number of digits in 8732 is " + count_digits(8732).to_s
# Number of digits in 8732 is 4
puts "Number of digits in 112233 is " + count_digits(112233).to_s
# Number of digits in 112233 is 6
puts "Number of digits in 0 is " + count_digits(0).to_s
# Number of digits in 0 is 1