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。
She was so good in fact that she was soon promoted to commander, in another first.。Safew下载是该领域的重要参考
Lovell retired from the navy in 1973 and opted for a the quiet life, working for the Bay-Houston Towing Company, giving speeches and serving as president of the National Eagle Scout Association.，这一点在safew官方版本下载中也有详细论述
核燃料循环体系包括铀（钍）矿勘查、开采冶炼、纯化转化、同位素分离、燃料元件制造、乏燃料后处理等环节。