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const loadingScreen = document.querySelector('.loading-screen');

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    wheelMultiplier: 0.8,
    touchMultiplier: 1.5,
    extraVirtualCap: 100
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realpath file.txt

# realpath is part of GNU coreutils

# Installed by default on most Linux distributions

/**
 * @param {number[]} nums
 * @return {number}
 */
var sumFourDivisors = function(nums) {
    // Helper: return the sum of divisors of n if it has exactly 4 divisors.
    // Otherwise return 0.
    function sumIfFourDivisors(n) {
        let count = 0; // how many divisors we've found
        let sum = 0;   // sum of those divisors

        // Check all possible divisors from 1 up to sqrt(n)
        for (let d = 1; d * d <= n; d++) {
            if (n % d === 0) {
                let other = 

<p class="text">テキスト</p>

# メール認証技術（SPF・DKIM・DMARC）学習メモ

---

## 1. SPF（Sender Policy Framework）

### 概要

- 「このドメインからのメールは、これらのIPアドレスから送信される」とDNSで宣言する仕組み
- 受信サーバーが送信元IPをSPFレコードと照合し、正当性を検証する

### なぜ必要か

- SMTPプロトコルは送信元アドレスを検証する仕組みを持たない
- 任意のサーバーから任意の送信元アドレスでメール送信が可能
- SPFにより、ドメイン所有者が「正当な送信元IP」を定義できる

### 設定場所

- ドメインのDNS TXTレコード

### レコード例

```
example.com. IN TXT "v=spf1 ip4:203.0.113.1 include:_spf.google.com -all"
```

| 部分 | 意味 |
|------|------|
| `v=spf1` | SPFバージョン1 |
| `ip4:203.0.113.1` | このIPからの送信を許可 |
| `include:

.hoge{
  /*ここの詳細度は1*/
}
.hoge.hoge{
  /*ここの詳細度は2*/
}

#!/bin/sh
dconf reset -f /org/gnome/shell/extensions/dash-to-panel/

services:
  postgres:
    image: postgres:16-alpine
    container_name: n8n-postgress
    restart: always
    environment:
      - POSTGRES_USER=${POSTGRES_USER}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
      - POSTGRES_DB=${POSTGRES_DB}
    volumes:
      - ./postgres_data:/var/lib/postgresql/data

  n8n:
    image: n8nio/n8n:latest
    container_name: n8n
    restart: always
    environment:
      - DB_TYPE=postgresdb
      - DB_POSTGRESDB_DATABASE=${POSTGRES_DB}
      - DB_POSTGRESDB_HO

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