      "\n",
      "    def test_coin_change_ways(self,solution):\n",
      "        assert_equal(solution(0, [1, 2]), 0)\n",
      "        assert_equal(solution(100, [1, 2, 3]), 884)\n",
      "        assert_equal(solution(1000, range(1, 101)), 15658181104580771094597751280645)\n",
      "        print('Success: test_coin_change_ways')\n",
      "\n",
      "\n",
      "def main():\n",
      "    test = Challenge()\n",
 
</s> remove     "        assert_equal(solution(1000, range(1, 101)), 15658181104580771094597751280645)\n",
 </s> add     "        assert_equal(solution(1000, range(1, 101)), \n",
    "                     15658181104580771094597751280645)\n", </s> remove    "def change_ways(n, coins):\n",
   "    arr = [1] + [0] * n\n",
   "    for coin in coins:\n",
   "        for i in range(coin, n + 1):\n",
   "            arr[i] += arr[i - coin]\n",
   "    return 0 if n == 0 else arr[n]"
 </s> add     "def change_ways(n, coins):\n",
    "    arr = [1] + [0] * n\n",
    "    for coin in coins:\n",
    "        for i in range(coin, n + 1):\n",
    "            arr[i] += arr[i - coin]\n",
    "    return 0 if n == 0 else arr[n]" </s> remove    "outputs": [
    {
     "name":"stdout",
     "text":[],
     "output_type": "stream"
    }
   ],
 </s> add    "outputs": [], </s> remove    "execution_count": 5,
 </s> add    "execution_count": 2, </s> remove    "version": "2.7.6"
 </s> add    "version": "2.7.10"
    "        assert_equal(solution(1000, range(1, 101)), \n",
    "                     15658181104580771094597751280645)\n",
      "\n",
      "    def test_coin_change_ways(self,solution):\n",
      "        assert_equal(solution(0, [1, 2]), 0)\n",
      "        assert_equal(solution(100, [1, 2, 3]), 884)\n",
    "        assert_equal(solution(1000, range(1, 101)), \n",
    "                     15658181104580771094597751280645)\n",
      "        print('Success: test_coin_change_ways')\n",
      "\n",
      "\n",
      "def main():\n",
      "    test = Challenge()\n",
keep keep keep keep replace keep keep keep keep keep
 Cleaned up cell execution numbers, minor PEP8 line break tweak. 
recursion_dynamic/coin_change_ways/coin_change_ways_challenge.ipynb