{
 "metadata": {
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.8.6-final"
  },
  "orig_nbformat": 2,
  "kernelspec": {
   "name": "python3",
   "display_name": "Python 3.8.6 64-bit",
   "metadata": {
    "interpreter": {
     "hash": "1ddf53fa84779e14f0db18342168679c9c165a81c5f324dac828befab228d68d"
    }
   }
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2,
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Get puzzle input from input file\n",
    "\n",
    "puzzle_input = open(\"input\").read()"
   ]
  },
  {
   "source": [
    "# Part 1 #"
   ],
   "cell_type": "markdown",
   "metadata": {}
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "ups = puzzle_input.count(\"(\")\n",
    "downs = puzzle_input.count(\")\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [],
   "source": [
    "end_floor = ups - downs"
   ]
  },
  {
   "source": [
    "print(end_floor)"
   ],
   "cell_type": "code",
   "metadata": {},
   "execution_count": 13,
   "outputs": [
    {
     "output_type": "stream",
     "name": "stdout",
     "text": [
      "138\n"
     ]
    }
   ]
  },
  {
   "source": [
    "# Part 2 #"
   ],
   "cell_type": "markdown",
   "metadata": {}
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [],
   "source": [
    "current_floor = 0"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [],
   "source": [
    "index = 0\n",
    "while current_floor >= 0 and index < len(puzzle_input):\n",
    "    if puzzle_input[index] == \"(\":\n",
    "        current_floor += 1\n",
    "    elif puzzle_input[index] == \")\":\n",
    "        current_floor -= 1\n",
    "    index += 1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "output_type": "stream",
     "name": "stdout",
     "text": [
      "1771\n"
     ]
    }
   ],
   "source": [
    "print(index)"
   ]
  }
 ]
}