Question

How to create a jagged array using vectors in Rust

Answer 1

fn main() {
    // Create a jagged array using vectors
    let jagged_array: Vec<Vec<i32>> = vec![
        vec![1, 2, 3],
        vec![4, 5],
        vec![6, 7, 8, 9],
    ];

    // Access elements in the jagged array
    for (i, row) in jagged_array.iter().enumerate() {
        println!("Row {}: {:?}", i, row);
        for (j, &val) in row.iter().enumerate() {
            println!("Element at [{}][{}] = {}", i, j, val);
        }
    }
}



/*
run:

Row 0: [1, 2, 3]
Element at [0][0] = 1
Element at [0][1] = 2
Element at [0][2] = 3
Row 1: [4, 5]
Element at [1][0] = 4
Element at [1][1] = 5
Row 2: [6, 7, 8, 9]
Element at [2][0] = 6
Element at [2][1] = 7
Element at [2][2] = 8
Element at [2][3] = 9
     
*/
 

 

70+ SQL courses for beginners and professionals