leetcode705

class MyHashSet {
public:
    /** Initialize your data structure here. */
    MyHashSet() {

    }

    void add(int key) {
        if(set[key] == )
            set[key]++;
    }

    void remove(int key) {
        if(set[key] > )
            set[key]--;
    }

    /** Returns true if this set contains the specified element */
    bool contains(int key) {
        if(set[key] > )
            return true;
        return false;
    }
private:
    int set[] = {};
};