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from sqlalchemy import create_engine, Column, Integer, String, DateTime
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# SQLite Database (local file - no configuration needed)
DATABASE_URL = "sqlite:///./complaints.db"

engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
Base = declarative_base()

class Complaint(Base):
    __tablen

/**
 * @param {number} n
 * @return {number}
 */
var numOfWays = function(n) {
    const MOD = 1_000_000_007;

    // a = number of ABC patterns for the current row
    // b = number of ABA patterns for the current row
    let a = 6;  // ABC has 6 permutations
    let b = 6;  // ABA also 6 valid patterns

    // Build row by row using the recurrence
    for (let i = 2; i <= n; i++) {
        // Compute next row counts based on transitions
        let nextA = (2 * a + 2 * b) % MOD;  // ABC -> ABC

echo $SHELL

# Filter only >90Days and >180Days
filtered_df = open_aging_df[open_aging_df['Age_Bucket'].isin(['>90Days', '>180Days'])]

# Pivot table with complaint type + age bucket
pi_data_df = pd.pivot_table(
    filtered_df,
    values='CLOSED/OPEN',        
    index=['COMPLAINT TYPE'],       
    columns=['Age_Bucket','DEPT'], 
    aggfunc='count',
    fill_value=0
)

# ➡️ Add Grand Total column (row-wise sum)
pi_data_df['Grand_Total'] = pi_data_df.sum(axis=1)

# ➡️ Add Grand Total row 

/**
 * @param {number[]} nums
 * @return {number}
 */
var repeatedNTimes = function(nums) {
    // We'll use a Set to track which numbers we've seen.
    const seen = new Set();
    
    // Walk through each number in the array
    for (let num of nums) {
        // If we've seen this number before, it must be the one
        // that is repeated n times (because only one element repeats).
        if (seen.has(num)) {
            return num;
        }
        
        // Otherwise, record it as s

sudo dnf remove nginx

dnf install nginx

dnf upgrade or dnf update

### Install OpenAI SDK across Multiple Languages

Source: https://platform.openai.com/docs/quickstart_api-mode=chat

This section provides instructions for installing the official OpenAI SDK or client libraries for various programming languages. These installations are prerequisites for making API calls to the OpenAI service.

```JavaScript
npm install openai
```

```Python
pip install openai
```

```C#
dotnet add package OpenAI
```

```Java
<dependency>
  <groupId>com.openai</groupId>
  <artifa

# Notes

import sys
import pandas as pd
import numpy as np
from flask import Flask, jsonify, request
from src.logging.logger import get_logger
from src.exceptions.exception import CustomException

logger = get_logger(__name__)

# flask_app.py

# -----------------------------------------------------------------------------
# Try to import custom modules
# -----------------------------------------------------------------------------
try:
    from src.constants.paths import dataset_path
    

import React, { useState, useEffect } from 'react';
import { useQuery, useQueryClient } from '@tanstack/react-query';
import { base44 } from '@/api/base44Client';
import { Button } from "@/components/ui/button";
import { Badge } from "@/components/ui/badge";
import { Skeleton } from "@/components/ui/skeleton";
import { 
    ArrowLeft, Hash, Eye, Clock, User, Pencil, Trash2,
    ChevronRight, BookOpen
} from 'lucide-react';
import { motion } from 'framer-motion';
import { Link, useNavigate } from

/**
 * @param {number[]} digits
 * @return {number[]}
 */
var plusOne = function(digits) {
    // Start from the last digit and move left
    for (let i = digits.length - 1; i >= 0; i--) {

        // If the current digit is less than 9, we can safely increment it
        // and return immediately because no carry is needed.
        if (digits[i] < 9) {
            digits[i]++;        // simple increment
            return digits;      // done - no ripple effect
        }

        // If the digi

## `apt remove`

### What it does

`apt remove` **uninstalls a package** from your system, but **keeps its configuration files**.

### In practice

* The program itself is removed
* System-wide config files (usually in `/etc`) are **left behind**
* This is useful if you think you might reinstall the package later and want to keep its settings

### Example

```bash
sudo apt remove nginx
```

➡️ Removes `nginx`, but keeps its configuration files.

---

## `apt autoremove`

### What it does

`apt a

/**
 * @param {number} row
 * @param {number} col
 * @param {number[][]} cells
 * @return {number}
 */
var latestDayToCross = function(row, col, cells) {
    // Helper: check if it's possible to cross on a given day
    function canCross(day) {
        // Build a grid where 1 = water, 0 = land
        const grid = Array.from({ length: row }, () => Array(col).fill(0));

        // Flood the first `day` cells
        for (let i = 0; i < day; i++) {
            const r = cells[i][0] - 1; // convert

apt update