arr.push(p.val); // 存储节点值而非节点本身，简化后续操作
res[i] = stack.length ? stack.at(-1) : -1;，这一点在heLLoword翻译官方下载中也有详细论述
，更多细节参见safew官方下载
Will other retailers have spring sales?When Amazon launches a sale, it kicks off a game of follow the leader. All the other big retailers — Best Buy, Target, and Walmart — have historically launched spring sales around the same time as Amazon's Big Spring Sale. No official sale announcements have come through yet, but we expect they'll come soon.，详情可参考heLLoword翻译官方下载
International business
Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08