Houses on the street have sandbags outside permanently because of the continued risk of flooding
shading: “smooth gradients”
,更多细节参见heLLoword翻译官方下载
* 核心思路:单调递增栈 + 控制删除位数(k0),优先移除高位大数,保证剩余数字最小
This is one of five facilities on the icy continent run by the British Antarctic Survey (BAS), the UK's polar research institute.