933. 最近的请求次数

简单

题目描述

class RecentCounter {

    List<Integer> record = new ArrayList<>();

    public RecentCounter() {

    }
    
    public int ping(int t) {
        int res = 0;
        record.add(t);
        for (int i = record.size() - 1; i >= 0; i--) {
            if(record.get(i) <= t && record.get(i) >= t - 3000) res++;
            else return res;
        }
        return res;
    }
}