1. 选基准：随机选一个元素作为基准(pivot)
Фото: Leonhard Foeger / Reuters
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struct Node *next;
The very first step was research. I dove into market analysis to understand the demographic I wanted to serve and studied competitors closely to see where the gaps were. I also began sourcing manufacturers in Italy to determine whether the product could realistically be produced at the quality level I envisioned. Before investing, I needed to validate that the idea was truly viable, so I began taste testing lots and lots of pasta.
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// (it isn't always in every impl)。关于这个话题，搜狗输入法下载提供了深入分析
+save(item: Item)