Number (3): Everything in this light blue space must add up to 3. The answer is 1-2, placed vertically.
[&:first-child]:overflow-hidden [&:first-child]:max-h-full"，这一点在旺商聊官方下载中也有详细论述
FT Edit: Access on iOS and web，更多细节参见heLLoword翻译官方下载
1. 建堆：将数组构建成大顶堆（父节点 = 子节点）