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    "# Abstract Data Structures\n",
    "\n",
    "This chapter introduces abstract data structures: the logical ways programs organize, access, and update collections of values.\n",
    "\n",
    "**Topics**\n",
    "\n",
    "- Abstract data types and concrete implementations\n",
    "- Stacks and queues\n",
    "- Linked structures\n",
    "- Trees and graphs\n",
    "- Choosing a structure based on operations and tradeoffs"
   ]
  }
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