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    "# Algorithms\n",
    "\n",
    "This chapter introduces algorithm foundations using a simple input-process-output model.\n",
    "\n",
    "**Learning Goals**\n",
    "- Explain an algorithm using input, process, and output\n",
    "- Identify sequence, decision, and repetition in algorithm steps\n",
    "- Connect efficiency to Big O growth trends\n",
    "- Apply a small design checklist before coding\n",
    "- Prepare for search and sorting notebooks"
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    "The concept of computer algorithm may be represented as the flowchart below. \n",
    "\n",
    "```text\n",
    "         INPUT\n",
    "           │\n",
    "           ▼\n",
    "    ┌──────────────┐\n",
    "    │   STEP  1    │\n",
    "    └──────┬───────┘\n",
    "           │\n",
    "           ▼\n",
    "    ┌──────────────┐\n",
    "    │   STEP  2    │\n",
    "    └──────┬───────┘\n",
    "           │\n",
    "           ▼\n",
    "    ┌──────────────┐        ┌─────────────┐\n",
    "    │   STEP  3    │──YES──▶│  DO  THIS   │\n",
    "    │  condition?  │        └─────────────┘\n",
    "    └──────┬───────┘\n",
    "           │ NO\n",
    "           ▼\n",
    "    ┌──────────────┐\n",
    "    │   STEP  4    │◀─────────────┐\n",
    "    └──────┬───────┘              │\n",
    "           │                      │\n",
    "           ▼                      │\n",
    "    ┌──────────────┐              │\n",
    "    │   loop?      │──────────────┘\n",
    "    └──────┬───────┘\n",
    "           │ done\n",
    "           ▼\n",
    "         OUTPUT\n",
    "```"
   ]
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   "id": "98075734",
   "metadata": {},
   "source": [
    "<h2>Chapter flow</h2>\n",
    "\n",
    "```{tableofcontents}\n",
    "```"
   ]
  },
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   "id": "144bff8a",
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   "source": []
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