How to Iterate over a Two Dimensional Vector in Rust - Step by Step Examples

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How to Iterate over a Two Dimensional Vector in Rust ?

Answer

To iterate over a two-dimensional vector in Rust, you can use nested loops.

✐ Examples

1 Iterate over a Numeric Two-Dimensional Vector

In this example,

We use nested for loops to iterate over each element of the two-dimensional vector.
The outer loop iterates over the rows, and the inner loop iterates over the columns.
Finally, we print each element of the two-dimensional vector to standard output.

Rust Program

fn main() {
    // Step 1: Iterate over a numeric two-dimensional vector
    let matrix = vec![vec![1, 2, 3], vec![4, 5, 6], vec![7, 8, 9]];
    
    // Step 2: Nested loops to print each element
    for row in &matrix {
        for &num in row {
            println!("{}", num);
        }
    }
}

Output

123456789

2 Iterate over a String Two-Dimensional Vector

In this example,

We use nested for loops to iterate over each element of the two-dimensional vector.
The outer loop iterates over the rows, and the inner loop iterates over the columns.
Finally, we print each element of the two-dimensional vector to standard output.

Rust Program

fn main() {
    // Step 1: Iterate over a string two-dimensional vector
    let matrix = vec![vec!["a", "b", "c"], vec!["d", "e", "f"], vec!["g", "h", "i"]];
    
    // Step 2: Nested loops to print each element
    for row in &matrix {
        for &ch in row {
            println!("{}", ch);
        }
    }
}

Output

abcdefghi

Summary

In this tutorial, we learned How to Iterate over a Two Dimensional Vector in Rust language with well detailed examples.

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