{
    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
    "keywords": [
        "leetcode",
        "O(1) 时间插入、删除和获取随机元素"
    ],
    "children": [],
    "export": [
        "solution.json"
    ],
    "title": "O(1) 时间插入、删除和获取随机元素"
}