{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "with open('1/input', 'r') as f:\n",
    "    data = f.readlines()\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2378066\n"
     ]
    }
   ],
   "source": [
    "left = []\n",
    "right = []\n",
    "distances = []\n",
    "for line in data:\n",
    "    a, b = map(int, line.split())\n",
    "    left.append(a)\n",
    "    right.append(b)\n",
    "\n",
    "left = sorted(left)\n",
    "right = sorted(right)\n",
    "\n",
    "for i in range(len(left)):\n",
    "    distances.append(abs(left[i] - right[i]))\n",
    "    \n",
    "print(sum(distances))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "#write a function that returns the amount of value existing in the 'right' list\n",
    "def count_occurence(value):\n",
    "    return sum([ True for x in right if x == value ])\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "18934359\n"
     ]
    }
   ],
   "source": [
    "print(sum([count_occurence(x)*x for x in left]))"
   ]
  }
 ],
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   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
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  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
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   "file_extension": ".py",
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