How to create a Vector of Vectors in Rust - Step by Step Examples

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How to create a Vector of Vectors in Rust ?

Answer

To create a vector of vectors in Rust, you can use a vector of vectors of a specific type.

✐ Examples

1 Create Vector of Vectors

In this example,

We define a vector named vector_of_vectors with a specific data type.
Each inner vector is represented as a separate vector within the main vector.
Finally, we print the vector of vectors to standard output.

Rust Program

fn main() {
    let vector_of_vectors: Vec<Vec<i32>> = vec![
        vec![1, 2, 3],
        vec![4, 5, 6],
        vec![7, 8, 9],
    ];

    println!("{:?}", vector_of_vectors);
}

Output

[[1, 2, 3], [4, 5, 6], [7, 8, 9]]

Summary

In this tutorial, we learned How to create a Vector of Vectors in Rust language with well detailed examples.