danidh05

import fetch from "node-fetch";
import dotenv from "dotenv";

// Load environment variables from .env file
dotenv.config();

// Type definitions for better type safety
interface WeatherResponse {
  city: string;
  temperature: number;

danidh05

/**
 * Find all unique pairs of numbers in an array whose sum equals a target value.
 *
 * @param arr - Array of integers
 * @param target - Target sum
 * @returns Array of unique pairs
 */
function findPairs(arr: number[], target: number): number[][] {
  if (!arr || arr.length < 2) return [];