思路：倒序单调栈。弹出所有 ≤ 当前身高的元素（这些人都能被看到），count 为弹出数量；若栈非空，还能看到栈顶（第一个更高的人），故 +1。能看到的人数 = count + (栈非空 ? 1 : 0)。
The deal was announced by the Federal Trade Commission (FTC) and a group of 11 states, of leaving the drivers on its Spark Driver app tens of millions of dollars out of pocket.，更多细节参见同城约会
Ginger's software helps you identify and correct common grammatical mistakes, such as consecutive nouns, or contextual spelling correction.，这一点在safew官方版本下载中也有详细论述
curr = curr-next;，这一点在搜狗输入法2026中也有详细论述