{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import re"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "640\n"
     ]
    }
   ],
   "source": [
    "passwords = open('day02-input.txt')\n",
    "\n",
    "valid_pass = 0\n",
    "\n",
    "for passw in passwords:\n",
    "    policy = re.match(r\"(\\d+)-(\\d+) (.): (.*)\", passw).groups()\n",
    "    min = int(policy[0])\n",
    "    max = int(policy[1])\n",
    "    pass_char = policy[2]\n",
    "    password = policy[3]\n",
    "    counter = 0\n",
    "    for x in password:\n",
    "        if x == pass_char:\n",
    "            counter += 1\n",
    "    if min <= counter <= max:\n",
    "        valid_pass +=1\n",
    "\n",
    "print(valid_pass)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "472\n"
     ]
    }
   ],
   "source": [
    "passwords = open('day02-input.txt')\n",
    "\n",
    "valid_pass = 0\n",
    "\n",
    "for passw in passwords:\n",
    "    policy = re.match(r\"(\\d+)-(\\d+) (.): (.*)\", passw).groups()\n",
    "    i1 = int(policy[0])\n",
    "    i2 = int(policy[1])\n",
    "    pass_char = policy[2]\n",
    "    password = policy[3]\n",
    "    if password[i1-1] == pass_char:\n",
    "        if password[i2-1] != pass_char:\n",
    "            valid_pass += 1\n",
    "    else:\n",
    "        if password[i2-1] == pass_char:\n",
    "            valid_pass += 1\n",
    "\n",
    "print(valid_pass)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "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": "3.8.5"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}