Детройт Ред Уингз
We are not asking "do the points fit in this particular semicircle?" We are asking "do the points fit in any semicircle?" The semicircle gets to move. It can be anchored at whichever point makes it work.
，更多细节参见雷电模拟器官方版本下载
// 易错点2：遍历结束后k仍0 → 栈是递增的，末尾数字更大，移除末尾k位，这一点在体育直播中也有详细论述
Where it can be applied