{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "italian-borough",
   "metadata": {},
   "outputs": [],
   "source": [
    "def nice(s):\n",
    "    prev_ch = None\n",
    "    vowels = 0\n",
    "    doubles = 0\n",
    "    disallowed_strings = 0\n",
    "    for ch in s:\n",
    "        if ch in ('a', 'e', 'i', 'o', 'u'):\n",
    "            vowels += 1\n",
    "        \n",
    "        if ch == prev_ch:\n",
    "            doubles += 1\n",
    "        \n",
    "        if prev_ch and prev_ch + ch in ('ab', 'cd', 'pq', 'xy'):\n",
    "            disallowed_strings += 1\n",
    "        \n",
    "        prev_ch = ch\n",
    "        \n",
    "    return vowels >= 3 and \\\n",
    "           doubles >= 1 and \\\n",
    "           disallowed_strings == 0"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "completed-shakespeare",
   "metadata": {},
   "outputs": [],
   "source": [
    "assert nice('ugknbfddgicrmopn') == True\n",
    "assert nice('aaa') == True\n",
    "assert nice('jchzalrnumimnmhp') == False\n",
    "assert nice('haegwjzuvuyypxyu') == False\n",
    "assert nice('dvszwmarrgswjxmb') == False"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "accompanied-overhead",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "importing Jupyter notebook from helper.ipynb\n"
     ]
    }
   ],
   "source": [
    "import import_ipynb\n",
    "import helper\n",
    "s = helper.read_file('2015_5.txt')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "imported-luther",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "255"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sum(map(nice, s.splitlines()))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "boolean-wyoming",
   "metadata": {},
   "outputs": [],
   "source": [
    "def nice2(s):\n",
    "    doubles = 0\n",
    "    repeating = 0\n",
    "    \n",
    "    for i in range(len(s)):\n",
    "        if i > len(s)-3:\n",
    "            break\n",
    "            \n",
    "        if s[i] == s[i+2]:\n",
    "            repeating += 1\n",
    "        \n",
    "        for j in range(i+2, len(s)-1):\n",
    "            if s[i] == s[j] and s[i+1] == s[j+1]:\n",
    "                doubles += 1\n",
    "        \n",
    "    return doubles >= 1 and repeating >= 1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "scientific-amendment",
   "metadata": {},
   "outputs": [],
   "source": [
    "assert nice2('qjhvhtzxzqqjkmpb') == True\n",
    "assert nice2('xxyxx') == True\n",
    "assert nice2('uurcxstgmygtbstg') == False\n",
    "assert nice2('ieodomkazucvgmuy') == False"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "parliamentary-omaha",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "55"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sum(map(nice2, s.splitlines()))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ranking-spell",
   "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": "3.9.2"
  },
  "title": "Doesn't He Have Intern-Elves For This?"
 },
 "nbformat": 4,
 "nbformat_minor": 5
}