Websites included

The crawler will be retrieving information from the following online judges:

• Codeforces
• CodeChef
• URI Online Judge
• Sphere Online Judge
• DMOJ
• A² Online Judge
• AtCoder
• CS Academy
• Timus Online Judge
• Caribbean Online Judge

Running Crawler

In order to run your crawler, follow these steps:

• First, make sure you have Python 3.6 and pip installed in your system. Then:

1. Go to src folder: cd src
2. Install project requirements: pip install -r requirements.txt
3. Run the crawler: scrapy runspider crawler/questions.py

This will start a breadth first search based on some heurístic spider module responsible for downloading all pages in the specified domain. You can see them on the fly in src/retrieved/documents and src/retrieved/objects folder.

Creating an Index

After running the crawler and retrieving documents, you have to manually set up an index to work with. In order to do this:

1. Go to src folder: cd src
2. Run the indexer: python3 indexer/indexer.py

It will search for documents stored at src/retrieved/objects and create various indexes accordingly. The indexes will be avaiable for latter querys at the src/indexes folder.