{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 66,
   "metadata": {},
   "outputs": [],
   "source": [
    "def wrapping_paper_area(l, w, h):\n",
    "    side_area = [l*w, w*h, h*l]\n",
    "    surface_area = 2 * sum(side_area)\n",
    "    slack = min(side_area)\n",
    "    return surface_area + slack\n",
    "\n",
    "def total_wrapping_paper_area(iter):\n",
    "    return sum((wrapping_paper_area(*l) for l in iter))\n",
    "\n",
    "def string_to_list(s):\n",
    "    return (map(int, l.split('x')) \n",
    "            for l in s.splitlines())\n",
    "\n",
    "def ribbon_length(l, w, h):\n",
    "    if l >= w and l >= h:\n",
    "        smaller_dimensions = (w, h)\n",
    "        \n",
    "    if w >= l and w >= h:\n",
    "        smaller_dimensions = (l, h)\n",
    "        \n",
    "    if h >= l and h >= w:\n",
    "        smaller_dimensions = (l, w)\n",
    "        \n",
    "    return 2*sum(smaller_dimensions) + l*w*h\n",
    "\n",
    "def total_ribbon_length(iter):\n",
    "    return sum((ribbon_length(*l) for l in iter))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 67,
   "metadata": {},
   "outputs": [],
   "source": [
    "assert wrapping_paper_area(2, 3, 4) == 58\n",
    "assert wrapping_paper_area(1, 1, 10) == 43"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 68,
   "metadata": {},
   "outputs": [],
   "source": [
    "import import_ipynb\n",
    "import helper\n",
    "s = helper.read_file('2015_2.txt')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 69,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1586300"
      ]
     },
     "execution_count": 69,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "total_wrapping_paper_area(string_to_list(s))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 70,
   "metadata": {},
   "outputs": [],
   "source": [
    "assert ribbon_length(2, 3, 4) == 34\n",
    "assert ribbon_length(1, 1, 10) == 14"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 71,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3737498"
      ]
     },
     "execution_count": 71,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "total_ribbon_length(string_to_list(s))"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.9.2"
  },
  "title": "I Was Told There Would Be No Math"
 },
 "nbformat": 4,
 "nbformat_minor": 2
}