OJ Problems FAQs

Question 1

Which competitive programming platforms does OJ Problems support?

Accepted Answer

OJ Problems supports a wide range of platforms, including LeetCode (both .com and .cn domains), Codeforces, AtCoder, Luogu, and more, via its `oj-api-rs` backend.

Question 2

What is OJ Problems (`oj-mcp-rs`)?

Accepted Answer

OJ Problems is an MCP (Model Context Protocol) server designed to expose online judge problem data from various platforms like LeetCode and Codeforces directly to LLM clients, enabling natural language interaction with problem information.

Question 3

How can I get the LeetCode daily challenge using this tool?

Accepted Answer

Once configured with your LLM client, you can simply ask a natural language query like "What is today's LeetCode daily challenge?" to use the `get_daily_challenge` tool and retrieve the problem details.

Question 4

Can I search for problems similar to a given one or by a free-text query?

Accepted Answer

Yes, OJ Problems features an AI-powered semantic search capability. You can use the `find_similar_problems` tool to search for related problems by specifying a problem ID (e.g., 'LeetCode 146') or a free-text query.

Question 5

Is authentication required to use OJ Problems?

Accepted Answer

Basic problem fetching and daily challenge retrieval typically do not require authentication. However, certain advanced features, such as querying backend platform support statistics (`get_platform_status`), may require a bearer token.

OJ Problems

OJ Problems

Key Features

Use Cases

Key Features

Use Cases