Question

How to print a 2D vector elements using for loop in Rust

Answer 1

fn main() {
    let vec2d : Vec<Vec<i32>> = vec![
                                vec![6, 1, 9], 
                                vec![4, -2, 5], 
                                vec![2, 8, 7],
                                vec![0, 54, 2]
                                ];

    let rows = vec2d.len();
    let cols = vec2d[0].len();
    
    for i in 0..rows {
        for j in 0..cols {
            print!("{:?} ", vec2d[i][j]); 
        }
        println!();
    }
}





/*
run:
    
6 1 9 
4 -2 5 
2 8 7 
0 54 2 

*/

 

 

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