代码速成助手

```json
{
"generated_code": "def binary_search(arr, target):\n    \"\"\"\n    Perform a binary search to find the target in a sorted array.\n\n    Parameters:\n    arr (list): A sorted list of elements.\n    target: The element to search for.\n\n    Returns:\n    int: The index of the target if found, otherwise -1.\n    \"\"\"\n    left = 0\n    right = len(arr) - 1\n\n    while left <= right:\n        mid = (left + right) // 2\n        # Check if the target is at the mid index\n        if arr[mid] == target:\n            return mid\n        # If the target is smaller, focus on the left half\n        elif arr[mid] > target:\n            right = mid - 1\n        # If the target is larger, focus on the right half\n        else:\n            left = mid + 1\n\n    # Target is not found\n    return -1"
}
```

```json
{
"generated_code": "public class AddTwoNumbers {\n    \n    // Method to add two numbers\n    public int add(int num1, int num2) {\n        return num1 + num2;\n    }\n\n    public static void main(String[] args) {\n        AddTwoNumbers calculator = new AddTwoNumbers();\n        int result = calculator.add(5, 10);\n        System.out.println(\"Sum: \" + result);\n    }\n}"
}
```

```json
{
  "generated_code": "const express = require('express');\nconst router = express.Router();\n\n/**\n * A sample route handler for GET requests.\n * This function retrieves a list of items.\n */\nrouter.get('/items', (req, res) => {\n  // Simulating fetching data from a database or service\n  const items = [\n    { id: 1, name: 'Item 1' },\n    { id: 2, name: 'Item 2' }\n  ];\n\n  res.status(200).json({ success: true, data: items });\n});\n\n/**\n * A sample route handler for POST requests.\n * This function adds a new item based on the request body.\n */\nrouter.post('/items', (req, res) => {\n  const { name } = req.body;\n\n  if (!name) {\n    return res.status(400).json({ success: false, message: 'Name is required' });\n  }\n\n  // Simulating the addition of the new item\n  const newItem = { id: Date.now(), name };\n\n  res.status(201).json({ success: true, data: newItem });\n});\n\n/**\n * A sample route handler for DELETE requests.\n * This function deletes an item by ID.\n */\nrouter.delete('/items/:id', (req, res) => {\n  const { id } = req.params;\n\n  // Simulating the deletion of an item\n  const deleted = true; // Assume the item is deleted successfully\n\n  if (deleted) {\n    res.status(200).json({ success: true, message: `Item with ID ${id} deleted` });\n  } else {\n    res.status(404).json({ success: false, message: 'Item not found' });\n  }\n});\n\nmodule.exports = router;"
}
```