the era of the traveler's check. A lot of consumers didn't want to carry a lot
The US military mistakenly shot down a Customs and Border Protection (CBP) drone near the Mexican border in a strike that reportedly used a laser-based anti-drone system. The CBP uses drones to track people crossing the border.
，这一点在91视频中也有详细论述
以 DeepSeek 自己做的蒸馏尝试为例：基于隔壁千问蒸馏自家的 R1 模型后得到的 DeepSeek-R1-Distill-Qwen 1.5B 这个小模型，仅靠 7000 条样本和极低的计算成本，就在 AIME24 数学竞赛基准上超越了 OpenAI 的 o1-preview。
方向遍历顺序说明下一个倒序（从右往左）先处理右侧，栈里存「右侧候选」上一个正序（从左往右）先处理左侧，栈里存「左侧候选」