The 10% leeway is being built in to reflect that some patients may not be able to make a same-day appointment or may call too late in the day to be realistically given one.
int mid = left + (right - left) / 2; // 防止溢出的中点计算
，推荐阅读WPS下载最新地址获取更多信息
（二）核验所投放信息的网站、应用程序是否依法备案或者取得许可；
for each candidate in list of candidates