📚 Moduł datastructures

use "datastructures";

Stack (stos)

let stack = Stack();
stack.push(1);
stack.push(2);
print(stack.pop());   // 2
print(stack.peek());  // 1
print(stack.isEmpty());  // false
        

Queue (kolejka)

let queue = Queue();
queue.enqueue(1);
queue.enqueue(2);
print(queue.dequeue());  // 1 (FIFO)
print(queue.peek());     // 2
        

Set (zbiór)

let set = Set();
set.add(1);
set.add(2);
set.add(1);  // ignorowane (duplikat)
print(set.size());     // 2
print(set.has(1));     // true
print(set.toList());   // [1, 2]
        

Counter

let counter = Counter(["a", "b", "a", "a", "c"]);
print(counter.get("a"));      // 3
print(counter.mostCommon(2)); // [["a", 3], ["b", 1]]
        