programmers2_scoville.ipynb

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   "source": [
    "### Programmers - Coding Exercises Level 2 - 더 맵게\n",
    "- Source: https://programmers.co.kr/learn/courses/30/lessons/42626"
   ]
  },
  {
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   "metadata": {},
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   "source": [
    "import heapq\n",
    "\n",
    "\n",
    "def solution(scoville, K):\n",
    "    n = len(scoville)\n",
    "    scoville.sort()\n",
    "    \n",
    "    while scoville[0] < K:\n",
    "        if len(scoville) == 1:\n",
    "            return -1\n",
    "        food1 = heapq.heappop(scoville)\n",
    "        food2 = heapq.heappop(scoville)\n",
    "        heapq.heappush(scoville, food1 + food2 * 2)\n",
    "        \n",
    "    return n - len(scoville)"
   ]
  },
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   "source": [
    "**Input-Output Examples:**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>scoville</th>\n",
       "      <th>K</th>\n",
       "      <th>return</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <td>0</td>\n",
       "      <td>[1, 2, 3, 9, 10, 12]</td>\n",
       "      <td>7</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "               scoville  K  return\n",
       "0  [1, 2, 3, 9, 10, 12]  7       2"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import pandas as pd\n",
    "examples = pd.DataFrame([\n",
    "    [[1, 2, 3, 9, 10, 12], 7, 2]\n",
    "], columns=[\"scoville\", \"K\", \"return\"])\n",
    "examples"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2\n"
     ]
    }
   ],
   "source": [
    "print(solution(*examples.values[0, :-1].tolist()))"
   ]
  }
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