LeetCode → Anki Card Generator (Markdown Fields)

When to use

Use this skill when the user wants to generate an Anki card for a LeetCode problem (or similar coding problem) using their fixed HTML template fields: title / status / difficulty / tags / companies / description / explanation / code / complexity / notes.

The user typically provides:

• The problem statement (may include examples/constraints)
• A Go solution they wrote (sometimes says "do not change my answer")

Inputs

Prefer to use (in order):

1. The current chat message content
2. Selected text in editor (if present)
3. Nearby open file content that obviously contains the problem + solution

If essential info is missing, make best-effort inferences (do NOT ask follow-up unless absolutely necessary).

Output rules (STRICT)

• Output ONLY the Markdown fields block (no preamble, no commentary, no extra sections).
• Keep the exact field names and ordering as in templates/card.md.
• Language: Chinese (as the user's deck is Chinese), keep technical terms in English when conventional (e.g., monotonic queue, prefix sum).
• Code: always a fenced Go code block.
• If the user indicates "do not change my answer / I recited this", copy the code verbatim (format included). If you notice a bug, mention it in notes only—do not rewrite the code.
• If "companies" is not provided, set companies: —.
• Tags: 3–6 concise items, slash-separated.

How to generate each field

• title: "{problemid}. {problemname}" if available; else use best-effort title from text.
• difficulty: 从题面提取（简单/中等/困难），缺失则推断但不要装作确定（可写"中等（推断）"）。
• description: 2–4 句中文，包含输入/输出/关键约束；不要复读整段题面。
• explanation: 给出核心思路 + 关键不变量/边界点；控制在 8–14 句内；不要展开到"教程长文"。
• complexity: 明确时间/空间复杂度（含关键维度：n、m、k 等）。
• notes: 3–6 条 bullet，写易错点、边界、实现细节、可替代解法（可简短提及）。

Template

Follow templates/card.md exactly.