Flowchart

Classic flowchart with decisions, IO and processes.

MermaidFlow & Process Mermaid syntax docs

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flowchart TD
    A([Start]) --> B[/Read input/]
    B --> C{Valid?}
    C -- yes --> D[Process]
    C -- no --> E[/Show error/]
    D --> F[/Write output/]
    F --> G([End])
    E --> G