日記 | blank71

a

日記！

$c = \pm\sqrt{a^2 + b^2}$

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graph TD A[Start] --> B{Decision} B -->|Yes| C[Process 1] B -->|No| D[Process 2] C --> E[End] D --> E

sequenceDiagram participant A as Alice participant B as Bob A->>B: Hello Bob! B->>A: Hi Alice!