Continue reading...
if (len === 0) return []; // 补充空数组边界，避免后续逻辑出错
。搜狗输入法下载是该领域的重要参考
P.S. During the entire time, Twitter blocked any posts containing the engramma.dev domain. Good thing there are many other channels to share.
描述：prices[i] 为第 i 件商品价格。第 i 件商品可获得折扣 prices[j]，其中 j 是满足 j i 且 prices[j] <= prices[i] 的最小下标；若无则无折扣。返回每件商品折扣后的最终价格。