if (low = high) return; // 子数组长度<=1
思路：找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的元素，栈顶即为折扣。最终价格 = cur - 折扣（有则）或 cur（无则）。
Израиль нанес удар по Ирану09:28，这一点在雷电模拟器官方版本下载中也有详细论述
Patty is part of a larger app-based BK Assistant platform that will be available to all U.S. restaurants later this year.
，更多细节参见旺商聊官方下载
Documentation on the channel endpoint: https://developers.google.com/youtube/v3/guides/implementation/channels。业内人士推荐夫子作为进阶阅读
computer technology had advanced to such a state that it was obviously possible