//Empty vector
let n1 = Vec::<u32>::new();
let n2: Vec<i32> = vec![];
// Single-dimensional array
let n3 = [1i32, 2, 3];
let s1 = ["1", "2", "3"];
// Multidimensional array.
let mut n4 = [[1, 2, 3], [4, 5, 6]];
n4[1][2] = 7;
// Jagged array
let mut n5 = [vec![1, 2], vec![3, 4, 5]];
n5[1][2] = 7;
println!("n1 is {:?}", n1);
println!("n2 is {:?}", n2);
println!("n3 is {:?}", n3);
println!("s1 is {:?}", s1);
println!("n4 is {:?}", n4);
println!("n5 is {:?}", n5);