140321(2)

Ruby


Hashのキーや値の設定の練習

h0 = Hash.new
x = 1
while 2**x < 1000 do
  h0[x] = 2**x
  x +=1
end
p h0

出力結果
{1=>2, 2=>4, 3=>8, 4=>16, 5=>32, 6=>64, 7=>128, 8=>256, 9=>512}

for i in (2..10) do
  h1 = Hash.new
  x = 1
  while i**x < 1000 do
    h1[x] = i**x
    x +=1
  end
  p h1
end

出力結果
{1=>2, 2=>4, 3=>8, 4=>16, 5=>32, 6=>64, 7=>128, 8=>256, 9=>512}
{1=>3, 2=>9, 3=>27, 4=>81, 5=>243, 6=>729}
{1=>4, 2=>16, 3=>64, 4=>256}
{1=>5, 2=>25, 3=>125, 4=>625}
{1=>6, 2=>36, 3=>216}
{1=>7, 2=>49, 3=>343}
{1=>8, 2=>64, 3=>512}
{1=>9, 2=>81, 3=>729}
{1=>10, 2=>100}