let prevFleetTime = -Infinity; // 上一个独立车队的到达时间（初始负无穷，保证第一个车被统计）
"Families have described to me good experiences, terrible experiences. It is patchy, it is inconsistent and what this investigation is about, is trying to find out the things that move us from poor and bad to good and excellent.
。WPS下载最新地址是该领域的重要参考
var tasks []task
10 monthly gift articles to share
优势：时间复杂度O(d*(n+k))，d为位数，适合位数少的整数