export class Queue<T> {
constructor(list: T[] = []) {
for (const item of list) {
this.enqueue(item);
}
}
private elements: Record<number, T> = {};
private head = 0;
private tail = 0;
enqueue(element: T) {
this.elements[this.tail] = element;
this.tail++;
}
dequeue() {
const item = this.elements[this.head];
delete this.elements[this.head];
this.head++;
return item;
}
get length() {
return this.tail - this.head;
}
get isEmpty() {
return this.length === 0;
}
}
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