Solution Indexes

The generated problem indexes live in the repository difficulty directories. The documentation site exposes them as MkDocs pages through symlinks, so the long tables are not copied into docs-site/.

Difficulty	English index	Chinese index
Easy	Easy index	Easy 中文清单
Medium	Medium index	Medium 中文清单
Hard	Hard index	Hard 中文清单

Regenerate these files with:

PYTHONPATH=src python scripts/generate_difficulty_readmes.py

The generated rows use the same output path rules as the solution generator, including fixed-width bucket directories such as 0001-0100.