640_147.mp4 Apr 2026

Often used to group programming challenges for specific Chinese tech firms (e.g., Kuaishou, Tencent, or Sangfor).

The identifier appears to be a internal tag used by the technical recruiting platform Nowcoder (牛客网) to categorize specific coding problems or company-specific recruitment content. In this context, it likely refers to a practice test or interview preparation module for a tech company like Kuaishou (快手). 640_147.mp4

If you downloaded this from a platform like Nowcoder or Bilibili, look for a corresponding "Problem ID" or "Lesson Title" on that site to find the written context. Often used to group programming challenges for specific

If you are trying to view or use this specific video, follow these general steps for educational video assets: 640_147.mp4

【牛客出品】C++求职学习路径：0基础入门到笔面试集训_牛客网