dymamic_array.rs

fn main() {
    let rows=3;
    let cols=4;
    let mut state = [[ 0u8; 4]; 2];
    //let mut state = [[0u8; 4]; 5];
    state[0][1] = 42;
    //println!("{:?}",state);
    for (r,v) in state.iter().enumerate(){
        println!("{:?}",v);
    }
    let mut v = vec![vec![0; cols]; rows];
    v[0][0] = 1;
    //println!("{:?}",v);
    let width=2;
    let height=2;
    let cells:Vec<i8> = (0..width * height)
            .map(|i| {
                if i % 2 == 0 || i % 7 == 0 {
                    1
                } else {
                    0
                }
        })
        .collect();
    //println!("{:?}",cells);
 }