hawaijar

const LRUCache = function (capacity) {
	this.cache = [];
	this.capacity = capacity;
	this.count = 0;
};
LRUCache.prototype.get = function (key) {
	const obj = this.cache.find((item) => item.key === key);
	if (obj) {
		this.cache = this.cache.filter((item) => item.key !== key);
		this.cache.push(obj);

hawaijar

class Heap {
	constructor() {
		this.container = [];
	}
	getLeftChildIndex(parentIndex) {
		return 2 * parentIndex + 1;
	}
	getRightChildIndex(parentIndex) {
		return 2 * parentIndex + 2;
	}

hawaijar

const ROMAN_MAPPING = {
    1: 'I',
    5: 'V',
    10: 'X',
    50: 'L',
    100: 'C',
    500: 'D',
    1000: 'M',
    4: 'IV',
    9: 'IX',