Every code that has been written by a user, together with the submission time, is stored in our database.
If this website provides a feature that allows us to determine how many times a specific code has been sent, or if that number surpasses a predetermined threshold, we may label it red to indicate that the code has been copied.

We can simply use Plagiarism detection techniques-

1. Text-Based Plagiarism Detection - Some popular tools include Turnitin, Copyscape, and MOSS (Measure Of Software Similarity).
2. Code Similarity Algorithms - Libraries like Simian and JPlag are examples.

ML Integration : Train machine learning models to identify code plagiarism. You can use techniques like natural language processing (NLP) and deep learning to analyze and compare code submissions.