Alzheimer.ipynb

Alzheimer.ipynb

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    "# 最底下有答案\n",
    "\n",
    "def record_step(func):\n",
    "    def func_wrapper(self, n):\n",
    "        self.actions.append((func.__name__, n))\n",
    "        func(self, n)\n",
    "    return func_wrapper\n",
    "        \n",
    "\n",
    "class BottleBuyer:\n",
    "    def __init__(self):\n",
    "        self.price = 2\n",
    "        self.caps_per_bottle = 4\n",
    "        self.empties_per_bottle = 2\n",
    "        self.money = 10\n",
    "        self.bottles = 0\n",
    "        self.bottles_drinked = 0\n",
    "        self.caps = 0\n",
    "        self.empties = 0\n",
    "        self.empty_debt = 0\n",
    "        self.cap_debt = 0\n",
    "        self.bottle_debt = 0\n",
    "        self.actions = []\n",
    "        \n",
    "    def print_stats(self):\n",
    "        template = '''Current Status:\n",
    "        Bottles: %d,\n",
    "        Caps: %d,\n",
    "        Empties: %d,\n",
    "        Money: %d,\n",
    "        Bottles Drinked: %d,\n",
    "        Cap Debt: %d,\n",
    "        Empty Debt: %d,\n",
    "        Bottle Debt: %d\n",
    "        '''\n",
    "        print(template % (\n",
    "                self.bottles,\n",
    "                self.caps,\n",
    "                self.empties,\n",
    "                self.money,\n",
    "                self.bottles_drinked,\n",
    "                self.cap_debt,\n",
    "                self.empty_debt,\n",
    "                self.bottle_debt\n",
    "            ))\n",
    "\n",
    "    def print_steps(self):\n",
    "        for action in self.actions:\n",
    "            print(\"%s %s\" % action)\n",
    "    \n",
    "    @record_step\n",
    "    def buy(self, n):\n",
    "        self.money -= n * self.price\n",
    "        self.bottles += n\n",
    "    \n",
    "    @record_step\n",
    "    def drink(self, n):\n",
    "        self.bottles -= n\n",
    "        self.empties += n\n",
    "        self.caps += n\n",
    "        self.bottles_drinked += n\n",
    "    \n",
    "    @record_step\n",
    "    def exchange_cap(self, n):\n",
    "        self.caps -= n\n",
    "        self.bottles += n / self.caps_per_bottle\n",
    "    \n",
    "    @record_step\n",
    "    def exchange_empty(self, n):\n",
    "        self.empties -= n\n",
    "        self.bottles += n / self.empties_per_bottle\n",
    "    \n",
    "    @record_step\n",
    "    def borrow_empty(self, n):\n",
    "        self.empties += n\n",
    "        self.empty_debt += n\n",
    "    \n",
    "    @record_step\n",
    "    def borrow_cap(self, n):\n",
    "        self.caps += n\n",
    "        self.cap_debt += n\n",
    "        \n",
    "    @record_step\n",
    "    def borrow_bottle(self, n):\n",
    "        self.bottles += n\n",
    "        self.bottle_debt += n\n",
    "    \n",
    "    @record_step\n",
    "    def return_empty(self, n):\n",
    "        self.empties -= n\n",
    "        self.empty_debt -= n\n",
    "    \n",
    "    @record_step\n",
    "    def return_cap(self, n):\n",
    "        self.caps -= n\n",
    "        self.cap_debt -= n\n",
    "    \n",
    "    @record_step\n",
    "    def return_bottle(self, n):\n",
    "        self.bottles -= n\n",
    "        self.bottle_debt -= n\n",
    "        "
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    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Current Status:\n",
      "        Bottles: 0,\n",
      "        Caps: 0,\n",
      "        Empties: 0,\n",
      "        Money: 0,\n",
      "        Bottles Drinked: 20,\n",
      "        Cap Debt: 0,\n",
      "        Empty Debt: 0,\n",
      "        Bottle Debt: 0\n",
      "        \n",
      "buy 5\n",
      "drink 5\n",
      "exchange_cap 4\n",
      "drink 1\n",
      "exchange_empty 6\n",
      "drink 3\n",
      "exchange_empty 2\n",
      "drink 1\n",
      "exchange_cap 4\n",
      "exchange_empty 2\n",
      "drink 2\n",
      "exchange_cap 4\n",
      "exchange_empty 2\n",
      "drink 2\n",
      "exchange_empty 2\n",
      "drink 1\n",
      "borrow_bottle 5\n",
      "drink 5\n",
      "exchange_cap 8\n",
      "exchange_empty 6\n",
      "return_bottle 5\n"
     ]
    }
   ],
   "source": [
    "b = BottleBuyer()\n",
    "b.buy(5)\n",
    "b.drink(5)\n",
    "b.exchange_cap(4)\n",
    "b.drink(1)\n",
    "b.exchange_empty(6)\n",
    "b.drink(3)\n",
    "b.exchange_empty(2)\n",
    "b.drink(1)\n",
    "b.exchange_cap(4)\n",
    "b.exchange_empty(2)\n",
    "b.drink(2)\n",
    "b.exchange_cap(4)\n",
    "b.exchange_empty(2)\n",
    "b.drink(2)\n",
    "b.exchange_empty(2)\n",
    "b.drink(1)\n",
    "b.borrow_bottle(5)\n",
    "b.drink(5)\n",
    "b.exchange_cap(8)\n",
    "b.exchange_empty(6)\n",
    "b.return_bottle(5)\n",
    "b.print_stats()\n",
    "b.print_steps()\n"
   ]
  },
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