Currently there are 850,000 patients on the waiting list in England requiring planned treatment to their joints – the largest of any speciality.
of allocations to 1, you reduced the number of allocations to 0!。服务器推荐是该领域的重要参考
Staying hands-on and problem solving in real time，详情可参考爱思助手下载最新版本
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）。