const stack = []; // 单调栈：存储「右侧候选更大值」，栈内元素单调递增
'Anxious' residents prepare for more flooding
，这一点在safew官方版本下载中也有详细论述
Available for over a year
YouGov的兩項調查看起來顯示：定期上教堂的年輕人數量在六年間翻了四倍。
Dithering in its simplest form can be understood by observing what happens when we quantise an image with and without modifying the source by random perturbation. In the examples below, a gradient of 256 grey levels is quantised to just black and white. Note how the dithered gradient is able to simulate a smooth transition from start to end.