2017/Day 04.ipynb

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   "source": [
    "import aocd\n",
    "\n",
    "data = aocd.get_data(day=4, year=2017)\n",
    "phrases = list(map(str.strip, data.splitlines()))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Part 1: 383\n"
     ]
    }
   ],
   "source": [
    "def is_valid(phrase):\n",
    "    words = phrase.split()\n",
    "    return len(words) == len(set(words))\n",
    "\n",
    "\n",
    "tests = {\n",
    "    \"aa bb cc dd ee\": True,\n",
    "    \"aa bb cc dd aa\": False,\n",
    "    \"aa bb cc dd aaa\": True,\n",
    "}\n",
    "for phrase, expected in tests.items():\n",
    "    assert is_valid(phrase) == expected\n",
    "\n",
    "print(\"Part 1:\", sum(map(is_valid, phrases)))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Part 2: 265\n"
     ]
    }
   ],
   "source": [
    "def is_valid_no_anagram(phrase):\n",
    "    words = phrase.split()\n",
    "    sorted_set = {\"\".join(sorted(w)) for w in words}\n",
    "    return len(words) == len(sorted_set)\n",
    "\n",
    "\n",
    "tests = {\n",
    "    \"abcde fghij\": True,\n",
    "    \"abcde xyz ecdab\": False,\n",
    "    \"a ab abc abd abf abj\": True,\n",
    "    \"iiii oiii ooii oooi oooo\": True,\n",
    "    \"oiii ioii iioi iiio\": False,\n",
    "}\n",
    "\n",
    "for phrase, expected in tests.items():\n",
    "    assert is_valid_no_anagram(phrase) == expected\n",
    "\n",
    "print(\"Part 2:\", sum(map(is_valid_no_anagram, phrases)))"
   ]
  }
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