每轮遍历后，最大元素会"冒泡"到末尾
- Veto. If the plan is unworkable, the chains show it.
，这一点在搜狗输入法中也有详细论述
The hardware: highs and lows
习题链接：LeetCode 739. 每日温度
Channels: ABC, ACC Network, Big Ten Network, ESPN, ESPN 2, ESPN 3, ESPNews, ESPN U, Fox, FS1, FS2, NBC, Pac-12 Network, SEC Network