jsimo237

/**
 * Fetches a random cat fact from a public API
 * Returns a clean JSON with selected fields
 */
async function fetchCatFact() {
    try {
        // 1. Make API call
        const response = await fetch('https://catfact.ninja/fact');
        

jsimo237

function processEvents(events, window = 10) {
    // Track the last allowed timestamp per user
    const lastAllowed = new Map();
    const results = [];

    for (const [timestamp, userId] of events) {
        const lastTime = lastAllowed.get(userId);

        // Allowed if no previous allowed event for this user,
        // or if the difference meets the window requirement

jsimo237

function findUniqueSumPairs(numbers, target) {
    // Validate input: must be an array with at least 2 numbers
    if (!Array.isArray(numbers) || numbers.length < 2) {
        return [];
    }
    
    // 'seen' keeps track of numbers we have already processed (O(1) lookup)
    const seen = new Set();
    
    // 'pairsMap' stores unique pairs using a normalized string key (e.g. "2-5")