老师不知道为什么提示“超出时间限制”

Question

var RecentCounter = function() {
    this.q = [];
};

/** 
 * @param {number} t
 * @return {number}
 */
RecentCounter.prototype.ping = function(t) {
    this.q.push(t);
    const p = this.q[0];
    while(t - p > 3000){//这里直接用this.q[0]就不会有问题
        this.q.shift();
    }
    return this.q.length;
};

/**
 * Your RecentCounter object will be instantiated and called as such:
 * var obj = new RecentCounter()
 * var param_1 = obj.ping(t)
 */

Answer 1

lewis 2021-08-28 12:25:20

shift之后队头变了，你用p的话，指向的还是老队头

• 提问者 weixin_慕丝2377090 #1

  非常感谢！