代码要点：倒序遍历，先算右侧再推左侧；栈内维护「右侧候选更大值」，单调递增（栈顶最小）。
阿妈看起来并不想让阿爸过去，“要是诚心叫，不会这样临时叫人”。
，这一点在WPS官方版本下载中也有详细论述
Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08
Unlike the Flip, the Go lacks creative modes and more advanced features. Instead, it’s just a simple point-and-shoot camera, just like the Mini 12, which makes it a little easier to use. There’s no Bluetooth or companion app for added effects; however, the camera does include a self-timer and a larger selfie mirror. The smaller prints may disappoint those who prefer traditional Polaroid sizes, though, and its modern design lacks the retro charm of older models. But classic Polaroid cameras didn’t come with an app, either, and the Go’s simplicity makes it an a easy-to-use option that delivers a traditional instant film experience at less than half the price of the Flip.