Jose Camara codeserk

## remove-the-outdated-stocks-from-the-queue.spec.ts
interface SnapshotRow {
  readonly sym: string
  readonly cost: number
}

/**
 * Removes outdated items from the snapshot.
 * @param snapshot
 */
export function stockQueue(snapshot: SnapshotRow[]): SnapshotRow[] {

## given-an-n-x-n-array-rotate-it-90-degrees-without-making-a-new-array.ts
/**
 * Rotates the incoming matrix 90deg
 * @param matrix
 */
export function rotate90deg(matrix: unknown[][]): void {
  const n = matrix.length === 0 ? 0 : matrix[0].length

  for (let ring = 0; ring < Math.floor(n / 2); ring++) {
    for (let position = ring; position < n - ring - 1; position++) {
      const backupRight = matrix[position][n - ring - 1]

## design-a-hashmap-without-using-any-built-in-libraries.ts
interface MapItem<T> {
    readonly key: string,
    readonly value: T
}

/** HashMap implementation using a 2D array */
class ArrayHashMap<T> {
  /**
   * Buckets where data will be stored
   *
	/**
	* Rotates the incoming matrix 90deg
	* @param matrix
	*/
	export function rotate90deg(matrix: unknown[][]): void {
	const n = matrix.length === 0 ? 0 : matrix[0].length

	for (let ring = 0; ring < Math.floor(n / 2); ring++) {
	for (let position = ring; position < n - ring - 1; position++) {
	const backupRight = matrix[position][n - ring - 1]
	interface MapItem<T> {
	readonly key: string,
	readonly value: T
	}

	/** HashMap implementation using a 2D array */
	class ArrayHashMap<T> {
	/**
	* Buckets where data will be stored
	*