17/08/31 00:36:20.74 pRAsTa7t.net
Ruby で書いた
URLﾘﾝｸ(paiza.io)
to = 100
ary = []
for i in 1..to
flag = false
flag = true if 0 == i % 3
i.to_s.each_char do |c| # 各文字
flag = true if "3" == c
end
ary << i if flag
end
s_out = ""
pre_quo = 0
ary.each do |num|
ans = num.divmod(10) # 商と余り
if pre_quo < ans[0] && 0 != ans[1]
s_out << "\n" # 改行
pre_quo = ans[0]
end
s_out << sprintf("%2d ", num)
end
puts s_out