1.C language programming - Weng Kay
https://www.bilibili.com/video/av15267247/?p=100
2. Data entry structure - Hao Bin
https://www.bilibili.com/video/av6159200/?p=76
3. Data structure
https://www.icourse163.org/learn/ZJU-93001?tid=1003997005#/learn/content?type=detail&id=1007588479&cid=1009151933