# frozen_string_literal: true

puts 'Enter the exponent'
input = gets.to_i
exponent = input + 1
some_arr = Array.new(exponent) { Array.new(exponent, 0) }

some_arr.each_with_index do |row, indexi|
  row.each_with_index do |_col, indexj|
    if indexj.zero?
      some_arr[indexi][indexj] = 1
    elsif indexi == indexj
      some_arr[indexi][indexj] = 1
    else
      some_arr[indexi][indexj] = some_arr[indexi - 1][indexj - 1] + some_arr[indexi - 1][indexj]
    end
  end
end

some_arr.each do |arr|
  print arr
  print "\n"
end