{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "pi3 = open('advent03.txt').read().strip()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2081"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import collections\n",
    "\n",
    "x, y = 0, 0\n",
    "houses = collections.defaultdict(int)\n",
    "houses[(0,0)] = 1\n",
    "\n",
    "for direction in pi3:\n",
    "    if direction == \"^\":\n",
    "        x += 1\n",
    "    if direction == 'v':\n",
    "        x -= 1\n",
    "    if direction == '>':\n",
    "        y += 1\n",
    "    if direction == '<':\n",
    "        y -= 1\n",
    "    houses[(x, y)] += 1\n",
    "len(houses)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2341"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import collections\n",
    "\n",
    "x, y, rx, ry = 0, 0, 0, 0\n",
    "houses = collections.defaultdict(int)\n",
    "houses[(0,0)] = 2\n",
    "\n",
    "for i in range(0, len(pi3), 2):\n",
    "    direction = pi3[i]\n",
    "    rdirection = pi3[i+1]\n",
    "    if direction == \"^\":\n",
    "        x += 1\n",
    "    if direction == 'v':\n",
    "        x -= 1\n",
    "    if direction == '>':\n",
    "        y += 1\n",
    "    if direction == '<':\n",
    "        y -= 1\n",
    "    houses[(x, y)] += 1\n",
    "    if rdirection == \"^\":\n",
    "        rx += 1\n",
    "    if rdirection == 'v':\n",
    "        rx -= 1\n",
    "    if rdirection == '>':\n",
    "        ry += 1\n",
    "    if rdirection == '<':\n",
    "        ry -= 1\n",
    "    houses[(rx, ry)] += 1\n",
    "len(houses)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
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  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
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   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
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