Do some fun thing based on leetcode but not solving the problem.
./fun_leetcode
├── __init__.py
├── Problem.py
├── utils.py
├── problem_fetcher
│ ├── fetch_all_and_save.py
│ ├── fetcher.py
│ └── __init__.py
├── tag_graph
│ ├── __init__.py
│ └── leetcode_tag_graph.py
└── word_cloud
├── __init__.py
└── leetcode_tag_cloud.py