Some generations of beauty and beauty

[guojinqianfan]

One significant optimization could be improving the remove_line() function. Currently, the function uses memcpy and memset, which could be improved for clarity and performance:
Optimized Row Removal: Instead of using memcpy for moving rows down, you can loop through each row in a more straightforward manner
Benefits of the Optimization
Clarity: The logic is more straightforward, making it easier to understand and maintain.
Performance: Reducing the number of memory operations may enhance performance, especially when multiple lines are cleared simultaneously.