// 步骤2：按位置降序排序（离终点越近的车越先处理）
// 3. 从后向前放置（保证稳定性）
，这一点在爱思助手下载最新版本中也有详细论述
印奇终于等来能把“技术信仰”四个字，翻译成财报的人。琴瑟和鸣。
sum += candidate.weight
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