LeetCode705(2021.3.13)

LC705. 设计哈希集合

class MyHashSet {
    boolean[] nodes = new boolean[1000010];

    public void add(int key) {
        nodes[key] = true;
    }

    public void remove(int key) {
        nodes[key] = false;
    }

    public boolean contains(int key) {
        return nodes[key];
    }
}