19/02/28 06:17:40.15 9oEuhY5c.net
>>410 Ruby
s = "ufo"
a = []
s.each_char do |c| a.push([c, c.upcase]) end
b = a[0]
a[1..-1].each do |e| b = b.product(e) end
b.each do |e| puts(e.join) end
19/02/28 06:17:40.15 9oEuhY5c.net
>>410 Ruby
s = "ufo"
a = []
s.each_char do |c| a.push([c, c.upcase]) end
b = a[0]
a[1..-1].each do |e| b = b.product(e) end
b.each do |e| puts(e.join) end