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/**
 * @param {number[]} nums - Input array of numbers
 * @param {number} k - Size of the sliding window
 * @param {number} x - Number of top elements to sum (based on freq × value)
 * @return {number[]} - Array of sums for each window
 */
var findXSum = function(nums, k, x) {
  const n = nums.length;

  // Shortcut: if k === x, just sum the window directly

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/**
 * Computes a sliding window sum based on the x most frequent elements.
 * 
 * @param {number[]} nums - The input array of numbers.
 * @param {number} k - The size of the sliding window.
 * @param {number} x - The number of top frequent elements to include in the sum.
 * @return {number[]} - An array of sums for each window.
 */
var findXSum = function(nums, k, x) {
    const result = [];

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/**
 * Removes balloons to ensure no two adjacent balloons have the same color,
 * minimizing the total removal time.
 *
 * @param {string} colors - A string where each character represents a balloon's color.
 * @param {number[]} neededTime - An array where each element is the time to remove the corresponding balloon.
 * @return {number} - The minimum total time to remove balloons to satisfy the condition.
 */
var minCost = function(colors, neededTime) {
    let totalTime = 0; // Total time to remove balloons

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/**
 * Finds the two "sneaky" numbers added to an array that originally contained all numbers from 0 to n-1.
 * The final array has length n + 2, and includes two unknown extra numbers.
 *
 * @param {number[]} nums - Array containing numbers from 0 to n-1 plus two extra unknowns.
 * @return {number[]} - The two extra numbers that were added.
 */
var getSneakyNumbers = function (nums) {
    const n = nums.length - 2; // Original range was 0 to n-1, so n = nums.length - 2
    let xorAll = 0;

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/**
 * @param {number[]} target
 * @return {number}
 */
var minNumberOperations = function(target) {
    // Initialize the total number of operations needed
    let operations = 0;

    // Loop through the target array
    for (let i = 0; i < target.length; i++) {

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/**
 * @param {number} n
 * @return {number}
 */
var smallestNumber = function(n) {
    // Start with 1 and keep shifting left and OR-ing to build numbers like 1, 3, 7, 15, 31, etc.
    let x = 1;

    // Keep generating numbers with all bits set until we find one >= n
    while (x < n) {

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/**
 * Counts how many zero positions in the array can lead to all elements being reduced to zero
 * by moving forward or backward and decrementing non-zero values.
 *
 * @param {number[]} nums - Array of non-negative integers
 * @return {number} - Total number of valid selections from zero positions
 */
var countValidSelections = function (nums) {
    // Collect indices where the value is zero
    const zeroIndexArr = nums.reduce((acc, cur, idx) => {

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/**
 * @param {string[]} bank
 * @return {number}
 */
// Function to calculate the total number of laser beams between security devices
var numberOfBeams = function(bank) {
    // Array to store the count of devices (i.e., '1's) in each non-empty row
    let arr = [];

    // Variable to accumulate the total number of beams

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/**
 * Bank constructor initializes the bank with account balances.
 * @param {number[]} balance - Array of initial balances for each account (1-indexed).
 */
var Bank = function(balance) {
  // Create an array of accounts with an extra slot at index 0 (unused).
  // This allows 1-based indexing for accounts.
  this.accounts = Array.from({ length: balance.length + 1 }, (_, i) => balance[i - 1] ?? 0);
  
  // Store the total number of accounts including the unused 0th index.

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/**
 * @param {number} n
 * @return {number}
 */
// Function to claculate the total amount of money saved over 'n' days
var totalMoney = function(n) {
    let total = 0; // Initialize total money saved
    let weekDay = 1; // Start from the first day of the week
    let weekNumber = 1; // Start from the first week