#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

puts "問題!"
puts "今の元号はなんでしょうか?"
puts "1：昭和"
puts "2：平成"
puts "3：令和"
print "答えを入力："
kotae = gets.chomp.to_i
if kotae == 1
  puts "不正解..."
elsif kotae == 2
  puts "惜しい!不正解..."
elsif kotae == 3
  puts "正解!!"
end

puts "問題!"
puts "今の元号はなんでしょうか？"
puts "1：昭和"
puts "2：平成"
puts "3：令和"

while true
  print "答えを入力："
  kotae = gets.chomp.to_i
  if kotae == 1
    puts "ブブー!不正解..."
    break
  elsif kotae == 2
    puts "ブブー!不正解..."
    break
  elsif kotae == 3
    puts "ピンポーン!正解!!"
    break
  else
    puts "その選択肢はないよ!"
    redo
  end
end

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

puts "問題!"
srand()
kazuiti = rand(99) + 1
kazuni = rand(99) + 1
printf("%d*%d\n", kazuiti, kazuni)

while true
  print "答えを入力："
  kotae = gets.chomp.to_i
  if kotae == kazuiti * kazuni
    puts  "正解!!"
    break
  else
    puts "不正解!!"
    break
  end
end