706. 设计哈希映射

class MyHashMap:

    def __init__(self):
        """
        Initialize your data structure here.
        """
        self.data = [-1] * 1000001

    def put(self, key: int, value: int) -> None:
        """
        value will always be non-negative.
        """
        self.data[key] = value

    def get(self, key: int) -> int:
        """
        Returns the value to which the specified key is mapped, or -1 if this map contains no mapping for the key
        """
        return self.data[key]

    def remove(self, key: int) -> None:
        """
        Removes the mapping of the specified value key if this map contains a mapping for the key
        """
        self.data[key] = -1



# Your MyHashMap object will be instantiated and called as such:
# obj = MyHashMap()
# obj.put(key,value)
# param_2 = obj.get(key)
# obj.remove(key)

class MyHashMap {

    private int[] data;

    /** Initialize your data structure here. */
    public MyHashMap() {
        data = new int[1000001];
        Arrays.fill(data, -1);
    }

    /** value will always be non-negative. */
    public void put(int key, int value) {
        data[key] = value;
    }

    /** Returns the value to which the specified key is mapped, or -1 if this map contains no mapping for the key */
    public int get(int key) {
        return data[key];
    }

    /** Removes the mapping of the specified value key if this map contains a mapping for the key */
    public void remove(int key) {
        data[key] = -1;
    }
}

/**
 * Your MyHashMap object will be instantiated and called as such:
 * MyHashMap obj = new MyHashMap();
 * obj.put(key,value);
 * int param_2 = obj.get(key);
 * obj.remove(key);
 */

class MyHashMap {
    data: Array<number>;
    constructor() {
        this.data = new Array(10 ** 6 + 1).fill(-1);
    }

    put(key: number, value: number): void {
        this.data[key] = value;
    }

    get(key: number): number {
        return this.data[key];
    }

    remove(key: number): void {
        this.data[key] = -1;
    }
}

/**
 * Your MyHashMap object will be instantiated and called as such:
 * var obj = new MyHashMap()
 * obj.put(key,value)
 * var param_2 = obj.get(key)
 * obj.remove(key)
 */