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   "source": [
    "# 11-20 · Методы словарей\n",
    "\n",
    "Практика к разделу [«Методы словарей»](../../site/chapters/glava-11/11-20-slovari-metody.html)."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8286fa89",
   "metadata": {},
   "source": [
    "## Цель\n",
    "\n",
    "Освоить setdefault(), pop() и keys()."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "574fecd8",
   "metadata": {},
   "source": [
    "## Задание ★ Базовая практика\n",
    "\n",
    "Подсчитайте, сколько раз встречается каждое слово в списке `words`, используя `setdefault()`. Сохраните отсортированный список ключей ДО удаления в `vse_klyuchi`, затем удалите ключ `\"b\"` через `.pop()`, сохранив удалённое значение в `udalyonnoe`."
   ]
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     "iopub.status.busy": "2026-08-17T14:44:49.799051Z",
     "iopub.status.idle": "2026-08-17T14:44:49.817004Z",
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   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'a': 3, 'c': 1}\n",
      "['a', 'b', 'c']\n",
      "2\n"
     ]
    }
   ],
   "source": [
    "words = [\"a\", \"b\", \"a\", \"c\", \"b\", \"a\"]\n",
    "counts = {}\n",
    "for word in words:\n",
    "    counts.setdefault(word, 0)\n",
    "    counts[word] += 1\n",
    "\n",
    "vse_klyuchi = sorted(counts.keys())\n",
    "udalyonnoe = counts.pop(\"b\")\n",
    "\n",
    "print(counts)\n",
    "print(vse_klyuchi)\n",
    "print(udalyonnoe)"
   ]
  }
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